- Open for 1 last update 2020/05/25 AccessOpen Access
- Matthew L. StollMatthew L. Stoll1Arthritis Curehow to Arthritis Cure for ,
- Chung H. Kau2,
- Peter D. Waite3 &
- Randy Q. Cron1Arthritis Curehow to Arthritis Cure for
1 the 1 last update 2020/05/25 AltmetricAltmetric
Arthritis involving the temporomandibular joint (TMJ) complicates 40 - 96% of cases of juvenile idiopathic arthritis (JIA), potentially leading to devastating changes to form and function. Optimal evaluation and management of this joint remains a matter of ongoing discussion.
We performed a PubMed search for all articles with keywords “temporomandibular” and “arthritis”, covering the dates 2002 through February 28, 2018. A separate PubMed search was performed for all articles with keywords “temporomandibular joint”, “arthritis”, and “treatment” covering the same dates.
The TMJ is a particularly challenging joint to assess, both clinically and with imaging studies. Clinical assessment of the TMJ is hampered by the low sensitivity of joint pain as well as the absence of physical exam findings early in the disease process. As with all joints, plain radiography and computed tomography only detect arthritic sequelae. Additionally, there is mixed data on the sensitivity of ultrasound, leaving magnetic resonance imaging (MRI) as the optimal diagnostic modality. However, several recent studies have shown that non-arthritic children can have subtle findings on MRI consistent with TMJ arthritis, such as joint effusion and contrast enhancement. Consequently, there has been an intense effort to identify features that can be used to differentiate mild TMJ arthritis from normal TMJs, such as the ratio of the enhancement within the TMJ itself compared to the enhancement in surrounding musculature. With respect to treatment of TMJ arthritis, there is minimal prospective data on medical therapy of this complicated joint. Retrospective studies have suggested that the response to medical therapy of the TMJ may lag behind that of other joints, prompting use of intraarticular (IA) therapy. Although most studies have shown short-term effectiveness of corticosteroids, the long-term safety of this therapy on local growth as well as on the development of IA heterotopic bone have prompted recommendations to limit use of IA corticosteroids. Severe TMJ disease from JIA can also be managed non-operatively with splints in a growing child, as well as with surgery.
Arthritis Curehow to Arthritis Cure for Conclusion
In this review, we summarize literature on the diagnosis and management of TMJ arthritis in JIA and suggest a diagnostic and therapeutic algorithm for children with refractory TMJ arthritis.
Forty to ninety-six percent of children with juvenile idiopathic arthritis (JIA) develop arthritis of the temporomandibular joint (TMJ) [1,2,3,4,5,6]; all JIA categories are at risk . There are several features of this joint that warrant particular attention, including its importance for everyday function, potential cosmetic implications of altered dentofacial growth, and the challenges in the evaluation and management of TMJ arthritis. Detailed discussion of the functional implications of TMJ arthritis are available [8, 9], but briefly include pain with talking, difficulty eating, and obvious and potentially embarrassing alterations to the normal facial appearance. This review will focus on the diagnosis and management of TMJ arthritis in children with JIA.
This was not a systematic review. However, one of the authors (RQC) performed a PubMed search for all articles with keywords “temporomandibular” and “arthritis”, covering the dates 2002 to the present. For the review of the studies on intraarticular therapy to the TMJ, a different author (MLS) performed a PubMed search for “temporomandibular joint”, “arthritis”, and “treatment” covering the same dates.
Anatomy and function
The TMJ is a synovial joint composed of 4 articulating surfaces: glenoid fossa of the temporal bone, the upper and lower surfaces of the articular disc, and the mandibular condyle . The disc divides the joint into the superior and inferior compartments. As it can move independently of the condyle, there is a potential for disc displacement, which results in pain, joint noises, and limited range of motion . The TMJ is a complex joint termed ginglymoarthrodial, meaning that it has both hinge and sliding motion. Specifically, motion at the inferior compartment consists of rotation (ginglymoid joint) and manifests as moving the chin, while motion at the superior compartment consists of sliding or translation and manifests as protrusion of the mandible. Both movements are very important for maximum mouth opening and function . A unique aspect of the joint is that both right and left must work in synchrony with partial dislocation. Additionally, the jaw works to maximize intercuspation of the teeth, so any dental anomalies can alter TMJ function and consequently result in condylar or disc abnormalities . The fact that teeth create an abrupt stop and that malocclusion causes complex neuromuscular feedback with altered proprioception leads to a variety of symptoms, presenting as articular and myofascial pain and dysfunction.
Arthritis Curehow to Arthritis Cure for Evaluation of TMJ arthritis
The TMJ is among the more challenging joints to evaluate clinically, due to the absence of visible joint swelling and lack of symptomatology early during arthritis. Historical findings indicative of damaging TMJ arthritis include the usual symptoms of pain and stiffness, as well as TMJ-specific symptoms of clicking and popping. The former indicates irregularities of the disc with movement, while the latter indicates a sudden prominent movement or dislocation of the disc during translation . A loud pop may indicate abnormal movement of the disc such as anterior dislocation with or without re-capture, limiting the range of motion. Joint noise is obvious due to close proximity to the ear cartilage and is commonly asymptomatic. The predictive power of such historical findings has been evaluated in studies of children with JIA, with findings that their sensitivities are low. For example, Weiss et al. (2008) prospectively evaluated 32 newly diagnosed subjects with JIA, finding that symptoms of TMJ pain and dysfunction were only 26% sensitive, albeit 100% specific, for identification of TMJ arthritis, as assessed by MRI . Thus, while certain abnormal physical exam findings are strongly suggestive of TMJ arthritis, their absence is not reassuring. The Weiss study, as well as similar studies evaluating physician examination maneuvers (below), used the MRI with contrast as a gold standard, the limitations of which will be discussed below.
TMJ arthritis does not typically manifest with joint swelling. Moreover, physical exam findings are late in the disease process where the bone growth has been altered by the arthritis. Thus, physical examination consists at the very least of evaluation for joint tenderness, clicking upon mouth opening, asymmetric mouth opening (present only in unilateral or unequal disease, with the jaw deviating towards the more affected side) , and assessment of opening. Recently, published recommendations also encouraged palpation of masticatory muscles and an evaluation of TMJ morphology and symmetry . As with the historical signs, no single one of these markers is highly sensitive for arthritis. For example, Koos et al. (2014) prospectively evaluated five physical exam maneuvers (asymmetric mouth opening, pain on palpation of masticatory muscles, pain on palpation of the TMJ, TMJ clicking and reduced maximal incisal opening (MIO)) as predictors of TMJ arthritis, using MRI as the gold standard . The sensitivity of each individual item ranged from a low of 21% (MIO) to a high of 65% (asymmetric opening). Combining the items, the presence of any one of them had a sensitivity of 85%, which will still not only miss a substantial number of cases but is also associated with a low specificity of 54%. Similarly, the studies by Weiss et al. (2008) and Muller et al. (2009) both reported that physical examination maneuvers had low sensitivity as well as low specificity for the detection of MRI-suggested TMJ arthritis in new-onset patients [14, 18]. In contrast, Abramowicz et al. (2013) reported that a combination of abnormal MIO for age and jaw deviation had a positive predictive value of 100% in patients with long-standing JIA, indicating that patients with both had a 100% likelihood of TMJ arthritis. However, in support of the previous work, the negative predictive value was only 46%, meaning that the majority of patients lacking one or both of these findings still had arthritis . Kristensen et al.  performed a systematic literature review, concluding that while studies were not directly comparable, no single physical exam finding could accurately predict MRI findings of TMJ arthritis .
Plain radiography and computed tomography
As with any joint, radiography of the TMJ provides information only on arthritic sequelae, not active arthritis. The TMJ is difficult to image due to for 1 last update 2020/05/25 the overlay of the skull base especially by traditional films. Even standard panoramic tomograms contain artifact and are of little value compared to MRI and CT. Computed tomography (CT) provides greater anatomic detail as compared to plain radiography, and is thus of benefit primarily in identifying surgical candidates . A form of CT, known as cone beam CT (CBCT), provides greater focus on the TMJ, thereby minimizing radiation of the surrounding brain and face. Features such as condylar flattening and erosion, as well as osteophyte formation, were readily distinguished between JIA patients and controls who underwent CBCT for unspecified reasons .As with any joint, radiography of the TMJ provides information only on arthritic sequelae, not active arthritis. The TMJ is difficult to image due to the overlay of the skull base especially by traditional films. Even standard panoramic tomograms contain artifact and are of little value compared to MRI and CT. Computed tomography (CT) provides greater anatomic detail as compared to plain radiography, and is thus of benefit primarily in identifying surgical candidates . A form of CT, known as cone beam CT (CBCT), provides greater focus on the TMJ, thereby minimizing radiation of the surrounding brain and face. Features such as condylar flattening and erosion, as well as osteophyte formation, were readily distinguished between JIA patients and controls who underwent CBCT for unspecified reasons .
Compared to MRI, ultrasound (US) has advantages with respect to cost and lack of requirement for sedation, but it is unclear as to whether it can identify active inflammation and arthritic sequelae as accurately as MRI with contrast. Weiss et al. (2008) compared US and MRI in the same cohort of 32 children studied above, finding that MRI detected both more active (24/32 vs 0/32) and chronic (22/32 vs 9/32) changes . Likewise, Muller et al. reported that MRI and even physical examination were both more sensitive at the detection of active inflammatory changes and arthritic sequelae as compared to US . More recently, Kirkhus et al. compared the correlation between ultrasonography-assessed capsular width and MRI assessment of synovitis (T1 weighted [T1W] signal increase at the synovium following administration of contrast), finding a correlation of 0.483 (p < 0.001) at the subcondylar level, concluding in contrast to the previous studies that US may in fact be a useful screening tool for arthritis of the TMJ . In support, several other studies that did not constitute direct comparisons with MRI did show that US frequently detected findings of active arthritis in children with JIA [24,25,26]. The reason for the variation in these findings is not clear, although they may relate to the operator-dependence of US, as well as challenges to US due to the small anatomy of the TMJ of young children. A review of the literature concluded that US has low sensitivity for detecting joint effusion and may be more valuable to monitor established TMJ arthritis than for its initial detection .
Magnetic resonance imaging
Most studies use MRI with contrast as the gold standard for the evaluation of TMJ arthritis , as it can identify both active arthritis changes as well as arthritic sequelae. Findings suggestive of active arthritis include joint fluid, bone marrow edema, and contrast enhancement (CE) (Fig. 1); those representing arthritic sequelae include changes to the shape of the condyle or disk, pannus, and osteophytes (Fig. 2). Short of performing biopsies or direct visualization (Fig. 3) of the joint in children with suspected TMJ arthritis, there would be no way to assess the sensitivity of the MRI in a human population. However, its specificity can be assessed by evaluating MRI of the TMJ in children who do not have arthritis. Although, ideally, such studies would be performed in completely healthy children, the requirement for CE, and in many cases sedation, preclude such a study for ethical reasons.
Nevertheless, several studies have evaluated findings at the TMJ in children without known or suspected JIA undergoing brain MRI. The first of these was conducted by Tzaribachev et al. in 2009; this retrospective study found that arthritic changes are very rare in non-arthritic children, with only three of 96 healthy children showing effusions and another three showing CE . Unfortunately, multiple subsequent studies have shown contradictory findings. In an uncontrolled study, von Kalle et al. reported that 14 joints from 46 non-arthritic children undergoing MRI of the brain had some degree of CE; additionally, the intensity of CE in the joint tissue post-contrast was 73% higher than pre-contrast, while the intensity of the CE in the joint tissue was a more modest 20% higher than that of the surrounding musculature . An even higher frequency of CE was reported by Kottke et al. in their study of 27 non-arthritic children . Fifty-two of 54 TMJs (96%) demonstrated CE, and 43 of 54 (83%) had effusions. Likewise, Angenete et al. reported CE in 35 of 36 (97%) subjects, as well as mild flattening of the condyle in 20/101 . Finally, Stoll et al.  reported CE in 120/122 (98%) non-arthritic controls, with the average size of the enhancement actually larger as compared to that in 35 newly-diagnosed JIA patients (1.1 ± 0.24 vs 0.88 ± 0.27 mm, p < 0.001).
In addition to identifying the presence of joint fluid or enhancement in non-arthritic subjects, several recent studies have also sought to determine the optimal method of assessing the presence and extent of enhancement. As CE will increase in any tissue with passage of time following contrast administration , comparison of CE in the TMJ with that of a control site present within the field of the view, most commonly the longus capitus muscle, is one approach. This ratio of the signal intensity (SI) in the area of interest divided by the SI in a control location is generally referred to as the enhancement ratio (ER). This method was studied by Peacock et al. in their study of 158 non-arthritic children who underwent MRI of the head. They reported ERs of 1.52 and 1.68 for the inferior and superior joint spaces, respectively . The same group also performed a retrospective controlled study of 72 children with JIA and 71 non-arthritic controls. In this study, both JIA patients and controls had an ER greater than 1, while the JIA patients had a significantly higher ER as compared to the controls (2.52 ± 0.79 versus 1.28 ± 0.16), with ROC analysis identifying 1.55 as the best cutoff value .
Similarly, Caruso et al. evaluated three different ratios in a cohort of subjects that included JIA patients with symptoms suggestive of TMJ arthritis, JIA patients without such symptoms, and non-arthritic controls. These ratios were (postGadolinium SI in the TMJ – preGadolinium SI in the TMJ)/(postGadolinium SI in the longus capitus – preGadolinium SI in the longus capitus); (postGadolinium SI in the TMJ – preGadolinium SI in the TMJ)/(postGadolinium of longus capitus); and (postGadolinium SI of TMJ)/(postGadolinium SI of longus capitus). Of those three, they concluded that the most favorable measure was the second (postGadolinium SI in the TMJ – preGadolinium SI in the TMJ)/(postGadolinium of longus capitus), due to optimal discrimination among the three groups and a lack of a substantial increase over time . Likewise, Ma et al.  compared a metric that evaluated only the change in SI pre- versus post-administration of gadolinium with a metric that measured a signal to noise ratio based upon enhancement in surrounding tissue, studying 67 children with JIA and 24 non-arthritic controls. Consistent with the study by Caruso et al. , Ma et al. concluded that the ER, which incorporated the extent of enhancement in the surrounding tissue, was better able to discriminate JIA patients with mild disease from controls . While the optimal method of assessing the extent of TMJ joint fluid or enhancement in controls may not be entirely clear, it is evident that small amounts of joint fluid and CE in non-arthritic subjects are common. Lastly, there also remain questions as to the optimal protocols, and magnet strengths versus imaging coils in evaluating the TMJ by MRI in children with JIA [39, 40].
Findings of mild degrees of CE in non-arthritic children should not undermine the body of literature indicating a very high frequency of TMJ arthritis in children with JIA. Healthy children do not typically demonstrate retrognathia, micrognathia, and jaw deviation on exam, findings that were once the norm in children with JIA [41,42,43]. Finally, all of these recent studies of the MRI in non-arthritic children reported fairly mild active arthritic changes, and essentially absent arthritic sequelae, a clear distinction from that seen in children with JIA [14, 41].
Medical treatment of TMJ arthritis
There is minimal prospective data evaluating the effectiveness of systemic immunosuppressive therapy on TMJ arthritis. Randomized clinical trials of conventional and biologic disease-modifying anti-rheumatic drugs generally have not included the TMJ as an outcome. The only prospective study that did evaluate the effectiveness of systemic medications on the TMJ was published over 30 years ago and included two medications that are no longer used (gold and penicillamine) in the management of children with JIA or related disorders . Evidence that the TMJ might not respond as well to current therapies as compared to other joints is observational, e.g., a retrospective study showing that of 73 patients with no evidence of arthritis on physical exam; 36 (49%) nevertheless had TMJ arthritis detectable by MRI . Many of these patients were taking traditional and biologic disease-modifying anti-rheumatic drugs (DMARDs). It is unclear why the TMJ would respond less robustly to systemic medications, as compared to other joints. The joint space is physically close to the growth zone of the condylar head, and evolutionarily it is a distinct synovial joint with a unique biochemical makeup. Moreover, there is precedent for the observation of relative responsiveness to therapy with other joints, e.g., the inability of traditional DMARDs to treat axial spondyloarthritis despite some effectiveness with these medications in the management of peripheral disease . There may also be differences in the biology of arthritis in that joint; as an illustration, one study showed different epigenetic changes of fibroblast-like synoviocytes in the knee as compared to the hip of patients with rheumatoid arthritis .
Despite these observations, there is indirect evidence that the TMJ does in fact respond to systemic immunosuppressive therapy. As discussed above, progressive radiographically evident destructive changes were once the norm in children with JIA, while this no longer appears to be the case. Anecdotally, our clinics are no longer heavily populated with children with visually evident facial deformities. Data supporting these observations came from a study by Twilt et al., who performed baseline and 5-year radiographs in 70 children treated with systemic but not local immunosuppressive therapy, finding decreased evidence of TMJ changes on exam as well as by radiography . The findings are all the more impressive given the minimal usage of biologics in this cohort (6/70; Twilt, personal communication). Likewise, Ince et al. reported decreased radiographic evidence of TMJ arthritis among 18 patients with JIA who were taking methotrexate, compared with nine who were not ; this was not a controlled study, so it is likely that the children on methotrexate were perceived to have had more severe disease overall than the children not taking any therapies, thus potentially biasing the findings towards the opposite direction. Finally, Stoll et al. (2012) reported that disease duration was protective against the likelihood of having TMJ arthritis in a population of 187 children with JIA, a finding which they took to indicate that therapy itself was protective . These findings are clearly in stark contrast to the older literature, in which disease duration was associated with progressive radiographically evident deterioration .
Intraarticular therapy for TMJ arthritis
Arthritis Curehow to Arthritis Cure for The safety and effectiveness of intraarticular corticosteroid injections (IACI) for TMJ arthritis has been reviewed twice, with somewhat different conclusions despite inclusion of the same studies [49, 50]. Included studies, as well as studies published since these reviews, are summarized in Tables 1 and 2. These studies have generally reported short-term improvement in markers of TMJ arthritis, including pain, physical examination findings, and MRI findings. Moreover, results were more robust in some studies versus others. In addition, no short-term serious adverse events were reported therein. As Stoustrup (2013) reported, these studies, however, generally lack methodologic rigor, as they are retrospective, uncontrolled, and unblinded in the outcome assessments, among other limitations . In addition, the studies may not have captured one recently identified potential safety event: alterations in the growth potential at the TMJ. Lochbuhler et al. performed IACI in 33 children with JIA, finding impaired mandibular growth following this therapy . A unique aspect of this study was that the investigators performed MRI at the time of the injection to evaluate whether the corticosteroid was administered within or immediately outside the joint space. Those subjects who received successful IA placement of the drug demonstrated decreased grade of inflammation yet more impairment of mandibular growth as compared to those subjects in whom MRI demonstrated extra-articular placement of the corticosteroid. Additionally, 21% of the subjects developed heterotopic bone formation (HBF) in the TMJ, which the authors speculated might have resulted from the CS injections themselves, and higher cumulative corticosteroid doses were associated with increased risk of condylar damage, although the issue of confounding by indication was not addressed. Nevertheless, the possibility that IA therapy could promote HBF was subsequently corroborated by Stoll et al. in their study of 238 subjects who had received IACS therapy, of whom 33 developed this outcome; in this study, multivariable analysis revealed that the total number of injections was associated with increased risk of HBF, while delay from diagnosis of JIA to initial injection was protective . Finally, one additional limitation of the studies evaluating the effectiveness and safety of IACI into the TMJ is that as they were all relatively small, they may not have captured rare but potentially serious short-term SAEs, such as rapid TMJ destruction and ankylosis [53, 54].
Another form of IA therapy that has been proposed is IA infliximab [55, 56]. IA therapy with tumor necrosis factor inhibitors into large joints has shown some effectiveness, e.g. [57, 58], even among patients who have failed IACI , and may be equivalent to if not superior than some forms of IA corticosteroids [60,61,62]. There is a single case report of 8 IA injections of infliximab administered to the TMJ over 36 weeks in an adult patient with psoriatic arthritis who had previously failed therapy with systemic infliximab as well as local IACI . This patient had clinical improvement without radiographic deterioration; MRI was not used as an outcome measure. Unfortunately, studies in children with JIA have not been able to replicate this success . The dose that can be administered into the TMJ of a child may be a limiting factor; the study by Carubbi et al. (2016) demonstrated superiority of TNFi over CS only in large joints . Additionally, the subject selection of JIA patients refractory to traditional and biologic DMARDs plus IA CS is one that is not ideal for the assessment of the effectiveness of IA infliximab. As subsets of TMJ arthritis patients anecdotally appear to benefit from IA corticosteroids and IA infliximab, both in the short and long terms, it will be valuable to identify the factors associated with likelihood of response to these therapies.
Finally, arthrocentesis and lavage without injection of any therapies may also have anti-inflammatory effects. Olsen-Bergem et al. randomized 17 JIA patients with bilateral TMJ arthritis to receive arthrocentesis alone in one joint, versus arthrocentesis accompanied by triamcinolone hexacetonide (TH) in the other; an additional four subjects presumably with unilateral involvement received TH plus arthrocentesis unilaterally, somewhat compromising the analysis of the study . The authors reported improvement in subjective parameters and objective physical examination findings in both groups compared to baseline, without any evident differences between the two treatment groups. Likewise, Kinard et al. published a case series of three children with JIA who underwent arthroscopy with lavage alone, reporting decreased pain at one-month follow-up in all three . Improvements in MIO of 2 and 5 mm were reported in two subjects; a third had unspecified improvement. Most recently, Antonarakis et al. compared outcomes of children receiving IACI with lavage, lavage alone, and no therapy . There appears to have been non-random assignment to all three groups, and they indicated that some of the children who received IACI to one TMJ may have received lavage in the contralateral joint, thus compromising assessment of change in MIO. They reported improvements in both treatment groups, perhaps more so in the group that also received IACI, but few differences that were statistically significant as compared to the no-treatment group. Thus, the benefit of lavage alone remains an open question. Additionally, despite short-term success of IA therapy in general, long-term benefit of IA therapy remains in question.
An alternative method of delivering CS to the TMJ was introduced by Mina et al. . This procedure consists of transdermal application of the drug, which is forced into deeper tissues through application of an electrical current. It has been used sporadically in arthritis [68, 69]. Their results were promising, with improved MIO observed in 19/28 and decreased pain observed in 11/15 with pain at baseline. Factors that may limit widespread application of this technique are that this requires a trained physical therapist to perform, as well as multiple visits to their office. No additional studies of this approach in treating TMJ arthritis have been reported.
Orthodontic (functional) devices
In order to preserve normal facial and jaw growth, mechanical (non-anti-inflammatory) approaches have been used in children with JIA. Functional orthodontic appliances (FOA) are splints that can alter mandibular position by stretching local musculature , basically braces for the jaw. Two types of FOA are available,: active treatment and distraction (stabilization) splints . Occlusal stabilization splints are used to help support and balance both TMJs and to prevent further pain and discomfort to the TMJ complex. They can be used in growing as well as in skeletally mature patients. They allow the patient to have even contacts when the teeth occlude in all ranges of motion including biting and side to side jaw movements, which can result in decreased pain . In contrast, active treatment splints are only used in the growing phases of a child, typically ages 8–16 years of age, and are intended to add incremental height to the splint platform on the affected side of the arthritic joint, thus potentially reducing asymmetry and need for surgical correction of skeletal deformity . They can also result in more even distribution of muscular forces within the jaw. Both forms of FOA are fairly unobtrusive cosmetically but effective therapy often requires many years of compliance. The general consensus is that they are optimally used when the disease is well-controlled medically , although studies evaluating outcomes of JIA patients with versus without active TMJ arthritis who are treated with FOA have not been performed. As reviewed , there are no high-quality prospective studies on their effectiveness. Instead, data are generally limited to one large study of children with impaired jaw shape for a variety of reasons  and smaller studies limited to children with JIA [74,75,76], all of which appear to show modest benefit. A recently published retrospective study of 54 children with JIA who were treated with a FOA for two years demonstrated decreased pain and increased MIO, although there was no comparator group. Data in a rabbit model of induced TMJ arthritis demonstrated that stabilization splints significantly reduced the condylar destruction and bone loss compared to untreated rabbits with TMJ arthritis , providing rationale for prospective studies in children with TMJ arthritis. No major safety issues have been raised with these devices .
Once a child has reached skeletal maturity, surgery is the only means of correcting anatomic abnormalities. The consensus is that surgery is not optimally performed in clinically active TMJs, and is generally postponed until growth is complete . However, if TMJ ankyloses develops, surgical intervention such as arthroplasty, or total prosthetic joint replacement is indicated sooner. Surgical options were reviewed in depth by Norholt et al. . Briefly, two options are available: distraction osteogenesis and orthognathic surgery. The former is a procedure, in which a partial osteotomy is performed in the cortex of the ramus, and slow mechanical forces are created daily increasing the desired length. New bone is slowly generated similar to growth. This technique is commonly used in craniofacial deformities such as Pierre Robin Sequence with airway obstruction . Orthognathic surgery is a common procedure to reconstruct the dento-skeletal deformity with precise masticatory function, and TMJ articulation, usually performed in young adults. This may involve a bilateral sagittal osteotomy of the ramus and/or Lefort 1 of the maxilla for alignment of the masticatory system with proper plane of occlusion to the TMJ .
Several IA therapies have been attempted in animal models of TMJ arthritis, whose future applications to human disease remain uncertain. Most of these studies use a model in which disease is introduced in rats or rabbits through intra-TMJ injection of a compound called Complete Freund’s Adjuvant, which consists of heat-killed Mycobacterium tuberculosis and induces a robust immunologic response. Two groups evaluated low-level laser therapy (LLLT), showing improved histologic features of inflammation [81, 82]. Human studies of LLLT show that it may have a modest analgesic effect ; however, its potential mechanism in arthritis is uncertain, and its clinical effects in patients with rheumatoid arthritis appear modest . Another potential therapy is local injection of hyaluronic acid (HA), which reduced histologic and bony morphometric measures of TMJ inflammation in one rat for 1 last update 2020/05/25 study . There is extensive clinical experience with HA as a therapeutic agent for osteoarthritis OA, for which there is an FDA-approved indication . There is also limited, although positive, experience with HA therapy in RA  and isolated enthesopathies . Finally, one group treated juvenile rabbits with induced TMJ arthritis with IA simvastatin, reporting improved bone surface density, although the extent of inflammation was not assessed . In addition to its cholesterol-lowering effects, statins may also have immunomodulatory properties, as evidenced by in vitro studies showing direct effects on the induction of regulatory T cells  and in vivo studies demonstrating modest but statistically significant improved disease scores in a randomized trial of atorvastatin versus placebo in adults with RA , and decreased risk of RA among long-term users of statins . The potential role of any of these therapies in the management of TMJ arthritis in children with JIA remains unknown and speculative.Several IA therapies have been attempted in animal models of TMJ arthritis, whose future applications to human disease remain uncertain. Most of these studies use a model in which disease is introduced in rats or rabbits through intra-TMJ injection of a compound called Complete Freund’s Adjuvant, which consists of heat-killed Mycobacterium tuberculosis and induces a robust immunologic response. Two groups evaluated low-level laser therapy (LLLT), showing improved histologic features of inflammation [81, 82]. Human studies of LLLT show that it may have a modest analgesic effect ; however, its potential mechanism in arthritis is uncertain, and its clinical effects in patients with rheumatoid arthritis appear modest . Another potential therapy is local injection of hyaluronic acid (HA), which reduced histologic and bony morphometric measures of TMJ inflammation in one rat study . There is extensive clinical experience with HA as a therapeutic agent for osteoarthritis OA, for which there is an FDA-approved indication . There is also limited, although positive, experience with HA therapy in RA  and isolated enthesopathies . Finally, one group treated juvenile rabbits with induced TMJ arthritis with IA simvastatin, reporting improved bone surface density, although the extent of inflammation was not assessed . In addition to its cholesterol-lowering effects, statins may also have immunomodulatory properties, as evidenced by in vitro studies showing direct effects on the induction of regulatory T cells  and in vivo studies demonstrating modest but statistically significant improved disease scores in a randomized trial of atorvastatin versus placebo in adults with RA , and decreased risk of RA among long-term users of statins . The potential role of any of these therapies in the management of TMJ arthritis in children with JIA remains unknown and speculative.
Our approach to refractory or isolated TMJ arthritis in children with JIA
In a child presenting with possible isolated TMJ arthritis, the first step is to distinguish JIA limited to the TMJs from its mimic, idiopathic condylar resorption, alternatively called internal condylar resorption (ICR) . A discussion of the surgical treatment of ICR is beyond the scope of this review, but is available elsewhere . Like any other joint, the TMJ can be the initial or sole manifestation of JIA. Indeed, some children presenting with isolated TMJ arthritis will go on to develop arthritis in other joints or uveitis . Differentiating isolated TMJ arthritis from ICR can be challenging, particularly in light of the data summarized above showing that non-arthritic children can have some degree of joint fluid or enhancement, so the presence of these findings, if mild, is not necessarily diagnostic of arthritis. Marked inflammatory changes, such as synovial thickening, appear to be rare in ICR , so when present, may suggest JIA. Erosive condylar changes may also help distinguish between the presence of ICR and JIA [22, 97]. In addition, while disc displacement in common in ICR, significant damage to the disc is rare . Finally, unilateral involvement may also suggest JIA over ICR [99, 100], although this has not been established.
A vexing scenario for the pediatric rheumatologist is a child with isolated TMJ arthritis, either at onset or following successful systemic therapy of the remainder of the joints . The management will depend on a variety of factors, including extent of active arthritis and arthritic sequelae on imaging, presence of symptoms or exam findings associated with TMJ arthritis, and availability of corticosteroid preparations. (At the time of this writing, TH, which is the optimal corticosteroid preparation for IA therapy in JIA , is not available anywhere in the United States). A flow diagram is shown in Fig. 4.
Children with JIA and completely normal findings on the MRI of the TMJ generally do not warrant further investigations unless signs or symptoms of TMJ arthritis develop. In children with JIA who are old enough to cooperate with the exam, we will typically follow MIO measurements (measured with disposable TheraBite scales, Atos Medical, New Berlin, WI), longitudinally. Unless very low, a single measurement has little prognostic value due to the wide range of measurements in healthy children . However, decreased MIO is likely to indicate TMJ arthritis, as is development of facial asymmetry and other signs or symptoms discussed above. Importantly, the smallest detectable difference in MIO was reported to be just under 0.5 cm , so changes of a lesser magnitude may not be clinically significant. Recently, recommendations for monitoring TMJ involvement in JIA were published .
Arthritis Curehow to Arthritis Cure for In children with mild findings of active arthritis, e.g. effusions or areas of enhancement < 1.5 mm with or without mild bone marrow edema, we recommend repeating the MRI within one year, as these can be normal findings. These mild changes can be observed in non-arthritic pediatric subjects , but this does not necessarily mean that it is a negative study. As discussed above, cross-sectional studies using plain radiography clearly demonstrate TMJ changes in at least 40% of JIA patients , so the pre-test probability of TMJ arthritis is considerably higher in a JIA patient than in a non-arthritic control. If the findings do not progress over one year, then subsequent imaging studies may not be required.
Children with fairly extensive active findings clearly have TMJ arthritis associated with JIA. However, in light of the recently recognized risks associated with IACI in the TMJ on long-term growth of the joint, as well as risks of HBF, optimal management is uncertain. Such children should have their systemic therapy optimized, e.g., addition of a conventional or biologic DMARD or change in dose; specifically, uses of weekly adalimumab or infliximab at doses upwards of 10 mg/kg/dose have been reported as safe and effective in children with JIA [104, 105], and it may be reasonable to consider to consider switching biologics in some cases. Furthermore, these children should be followed closely for development of TMJ damage as evidenced by MRI and MIO, as well as assessments of dentofacial growth and development of asymmetry. If the arthritis is asymptomatic and is not damaging the joint, then adjustment of the systemic therapies and careful monitoring may be all that is required. However, if the TMJ arthritis is causing significant damage to the joint, e.g., bony erosions or disk displacement, then local therapy in addition to adjustment of systemic therapies may be recommended. It bears emphasis that while mild active changes can be seen in non-arthritic children, significant arthritic sequelae continue to be specific for arthritis, and the presence of such in the context of large areas of enhancement or thickened synovium therefore represent unopposed arthritis and undoubtedly place the child at risk of structural and functional damage. If these steps are not successful, we would not recommend performing more than two IACI into the same TMJ, as children who do not respond to an initial injection generally do not respond well to subsequent injections either . If the arthritis is progressing despite these measures, then alternative albeit somewhat experimental approaches such as injection with a TNFi or HA, or even lavage alone, may be warranted. In addition, orthodontic approaches may be of value in maintaining appropriate jaw growth [71, 74, 107].
For management of TMJ arthritis, as with management of JIA as a whole, there is no clear guidance from the literature as to when therapies may be discontinued. Use of S100 proteins have been studied as a predictive tool among children discontinuing TNFi therapy , but these markers are not available for clinical purposes in the United States, nor is there any specific data with respect to their use in the TMJ. We would recommend that all other aspects of the disease (arthritis in other joints, uveitis, systemic symptoms, etc) should be in remission  for at least 12–24 months , although there is mixed data as to whether prolonged periods of remission increase success of drug withdrawal [111,112,113,114]. Then, if MRI with contrast reveals no active findings in the TMJ, one may consider tapering systemic therapy.
Arthritis Curehow to Arthritis Cure for Finally, monitoring TMJ arthritis by contrast MRI has been questioned in terms of safety. In 2017, the Food and Drug Administration issued a statement calling into question the safety of gadolinium-based contrast agents (GBCAs; https://www.fda.gov/Safety/MedWatch/SafetyInformation/SafetyAlertsforHumanMedicalProducts/ucm559709.htm). This recommendation is based upon findings of retention of GBCAs in the brain and possibly other tissues following repeat studies . It bears emphasis, however, that there no clear clinical symptoms associated with this deposition, and GBCAs have been safely used in millions of patients with normal renal function , and a revised statement released by the FDA in December of 2017 concluded that while we should minimize closely-spaced repeat contrast MRIs, we should not avoid or defer necessary scans (https://www.fda.gov/Safety/MedWatch/SafetyInformation/SafetyAlertsforHumanMedicalProducts/ucm589580.htm). It is advisable when possible to use macrocyclic rather than linear GBCAs, as the former result in decreased deposition [117, 118].
The issue of retention of GBCAs is unrelated to long-recognized safety issue with GBCAs: the risk of nephrogenic systemic fibrosis in patients with renal insufficiency . In these patients, the risks and benefits of a contrast MRI must be weighed very carefully, and our general recommendations above do not apply to them.
Once dubbed the “forgotten joint” , there has been an explosion of scholarship in recent years focusing on the diagnosis and management of TMJ arthritis. Yet, the more we learn about this joint, the less we really know about it. There is no doubt that TMJ arthritis is a frequent complication of JIA, and that if untreated, can have devastating effects on the form and function of the joint, jaw, and midface. While distinguishing between normal findings and mild arthritis can be challenging, significant TMJ arthritis resulting in joint damage can still occur, even early in the disease course . Modern therapies have revolutionized the treatment of JIA as a whole , but the TMJ appears to have lagged behind . Thus, IA therapy may remain the best option for some children. While we do not discount recent scholarship indicating the IACI may adversely impact the growth of the jaw , nor do we discount four decades of scholarship indicating that unopposed arthritis is harmful , and to date, corticosteroids are the only local therapy that have clearly shown to be of benefit in the management of TMJ arthritis. Future prospective research is indicated to evaluate alternative local approaches, as well as to understand the natural course among children with active inflammation, so that we can predict which children are likely to develop significant damage among those with active disease.
Cone beam computed tomography
Arthritis Curehow to Arthritis Cure for Contrast enhancement
Functional orthodontic appliance
Gadolinium-based contrast agent
Heterotopic bone formation
Intraarticular corticosteroid injection
Internal condylar resorption
Juvenile idiopathic arthritis
Low-level laser therapy
Maximal incisal opening
Abdul-Aziez OA, et al. Serum S100A12 and temporomandibular joint magnetic resonance imaging in juvenile idiopathic arthritis Egyptian patients: a case control study. Pak J Biol Sci. 2010;13(3):101–13.
Abramowicz S, et al. Magnetic resonance imaging of temporomandibular joints in children with arthritis. J Oral Maxillofac Surg. 2011;69(9):2321–8.
Argyropoulou MI, et al. Temporomandibular joint involvement in juvenile idiopathic arthritis: clinical predictors of magnetic resonance imaging signs. Eur Radiol. 2009;19(3):693–700.
Cannizzaro E, et al. Temporomandibular joint involvement in children with juvenile idiopathic arthritis. J Rheumatol. 2011;38(3):510–5.
Arthritis Curehow to Arthritis Cure for Cedstromer AL, et al. Temporomandibular condylar alterations in juvenile idiopathic arthritis most common in longitudinally severe disease despite medical treatment. Pediatr Rheumatol Online J. 2014;12:43.
Stoll ML, et al. Risk factors for temporomandibular joint arthritis in children with juvenile idiopathic arthritis. J Rheumatol. 2012;39(9):1880–7.
Stoll ML, Cron RQ. Temporomandibular joint arthritis in juvenile idiopathic arthritis: the last frontier. Int J Clin Rheumatol. 2015;10:273–86.
Hsieh YJ, et al. Facial morphology in children and adolescents with juvenile idiopathic arthritis and moderate to severe temporomandibular joint involvement. Am J Orthod Dentofac Orthop. 2016;149(2):182–91.
Ringold S, Cron RQ. The temporomandibular joint in juvenile idiopathic arthritis: frequently used and frequently arthritic. Pediatr Rheumatol Online J. 2009;7:11.
Hammer MR, Kanaan Y. Imaging of the pediatric temporomandibular joint. Oral Maxillofac Surg Clin North Am. 2018;30(1):25–34.
Niibo P, et al. Contemporary management of TMJ involvement in JIA patients and its orofacial consequences. EPMA J. 2016;7:12.
- for 1 last update 2020/05/25 12.12.
Park JT, et al. Realization of masticatory movement by 3-dimensional simulation of the temporomandibular joint and the masticatory muscles. J Craniofac Surg. 2013;24(4):e347–51.
Okeson JP. Critical commentary 1: evaluation of the research diagnostic criteria for temporomandibular disorders for the recognition of an anterior disc displacement with reduction. J Orofac Pain. 2009;23(4):312–5. author reply 323-4
Weiss PF, et al. High prevalence of temporomandibular joint arthritis at disease onset in children with juvenile idiopathic arthritis, as detected by magnetic resonance imaging but not by ultrasound. Arthritis Rheum. 2008;58(4):1189–96.
Demant S, et al. 3D analysis of facial asymmetry in subjects with juvenile idiopathic arthritis. Rheumatology (Oxford). 2011;50(3):586–92.
Stoustrup P, et al. Clinical orofacial examination in juvenile idiopathic arthritis: international consensus-based recommendations for monitoring patients in clinical practice and research studies. J Rheumatol. 2017;44(3):326–33.
Koos B, et al. Reliability of clinical symptoms in diagnosing temporomandibular joint arthritis in juvenile idiopathic arthritis. J Rheumatol. 2014;41(9):1871–7.
Muller L, et al. Early diagnosis of temporomandibular joint involvement in juvenile idiopathic arthritis: a pilot study comparing clinical examination and ultrasound to magnetic resonance imaging. Rheumatology (Oxford). 2009;48(6):680–5.
Abramowicz S, et al. Physical findings associated with active temporomandibular joint inflammation in children with juvenile idiopathic arthritis. J Oral Maxillofac Surg. 2013;71(10):1683–7.
Kristensen KD, et al. Clinical predictors the 1 last update 2020/05/25 of temporomandibular joint arthritis in juvenile idiopathic arthritis: a systematic literature review. Semin Arthritis Rheum. 2016;45(6):717–32.Kristensen KD, et al. Clinical predictors of temporomandibular joint arthritis in juvenile idiopathic arthritis: a systematic literature review. Semin Arthritis Rheum. 2016;45(6):717–32.
da Motta AT, et al. Superimposition of 3D cone-beam CT models in orthognathic surgery. Dental Press J Orthod. 2010;15(2):39–41.
- the 1 last update 2020/05/25 22.22.
Arthritis Curehow to Arthritis Cure for Al-Shwaikh H, et al. Radiologic features of temporomandibular joint osseous structures in children with juvenile idiopathic arthritis. Cone beam computed tomography study. Stomatologija. 2016;18(2):51–60.
Kirkhus for 1 last update 2020/05/25 E, et al. Temporomandibular joint involvement in childhood arthritis: comparison of ultrasonography-assessed capsular width and MRI-assessed synovitis. Dentomaxillofac Radiol. 2016;45(8):20160195.Kirkhus E, et al. Temporomandibular joint involvement in childhood arthritis: comparison of ultrasonography-assessed capsular width and MRI-assessed synovitis. Dentomaxillofac Radiol. 2016;45(8):20160195.
Assaf AT, et al. Is high-resolution ultrasonography suitable for the detection of temporomandibular joint involvement in children with juvenile idiopathic arthritis? Dentomaxillofac Radiol. 2013;42(3):20110379.
- the 1 last update 2020/05/25 25.25.
Jank S, et al. Sonographic investigation of the temporomandibular joint in patients with juvenile idiopathic arthritis: a pilot study. Arthritis Rheum. 2007;57(2):213–8.
Melchiorre D, et al. Sonographic evaluation of the temporomandibular joints in juvenile idiopathic arthritis(). J Ultrasound. 2010;13(1):34–7.
Hechler BL, et al. Ultrasound versus magnetic resonance imaging of the temporomandibular joint in juvenile idiopathic arthritis: a systematic review. Int J Oral Maxillofac Surg. 2018;47(1):83–9.
Kellenberger CJ, Arvidsson LZ, Larheim TA. Magnetic resonance imaging of temporomandibular joints in juvenile idiopathic arthritis. Semin Orthod. 2015;21(2):111–20.
Tzaribachev N, Fritz J, Horger M. Spectrum of magnetic resonance imaging appearances of juvenile temporomandibular joints (TMJ) in non-rheumatic children. Acta Radiol. 2009;50(10):1182–6.
von Kalle T, Winkler for 1 last update 2020/05/25 P, Stuber T. Contrast-enhanced MRI of normal temporomandibular joints in children--is there enhancement or not? Rheumatology (Oxford). 2013;52(2):363–7.von Kalle T, Winkler P, Stuber T. Contrast-enhanced MRI of normal temporomandibular joints in children--is there enhancement or not? Rheumatology (Oxford). 2013;52(2):363–7.
- Arthritis Curehow to Arthritis Cure for 31.
Kottke R, et al. Contrast-enhanced MRI of the temporomandibular joint: findings in children without juvenile idiopathic arthritis. Acta Radiol. 2015;56(9):1145–52.
Angenete OW, et al. Normal magnetic resonance appearances of the temporomandibular joints in children and young adults aged 2-18 years. Pediatr Radiol. 2017;
- Arthritis Curehow to Arthritis Cure for 33.
Arthritis Curehow to Arthritis Cure for Stoll ML, et al. Defining the normal appearance of the temporomandibular joints by magnetic resonance imaging with contrast: a comparative study of children with and without juvenile idiopathic arthritis. Pediatr Rheumatol Online J. 2018;16(1):8.
- the 1 last update 2020/05/25 34.34.
Arthritis Curehow to Arthritis Cure for Kellenberger CJ, et al. Temporomandibular joint atlas for detection and grading of juvenile idiopathic arthritis involvement by magnetic resonance imaging. Pediatr Radiol. 2017;
Peacock ZS, et al. Quantifying synovial enhancement of the pediatric temporomandibular joint. J Oral Maxillofac Surg. 2016;74(10):1937–45.
Resnick CM, et al. Quantifying temporomandibular joint synovitis in children with juvenile idiopathic arthritis. Arthritis Care Res (Hoboken). 2016;68(12):1795–802.
Caruso P, et al. Optimization of quantitative dynamic Postgadolinium MRI technique using normalized ratios for the evaluation of temporomandibular joint synovitis in patients with juvenile idiopathic arthritis. AJNR Am J Neuroradiol. 2017;38(12):2344–50.
Ma GM, et al. MRI thresholds for discrimination between normal and mild temporomandibular joint involvement in juvenile idiopathic arthritis. Pediatr Rheumatol Online J. 2015;13:53.
Inarejos Clemente EJ, et al. Qualitative and semi-quantitative assessment of temporomandibular joint MRI protocols for juvenile idiopathic arthritis at 1.5 and 3.0T. Eur J Radiol. 2018;98:90–9.
Tolend MA, et al. Towards establishing a standardized magnetic resonance imaging scoring system for temporomandibular joints in juvenile idiopathic arthritis. Arthritis Care Res (Hoboken). 2017;
Arvidsson LZ, Flato B, Larheim TA. Radiographic TMJ abnormalities in patients with juvenile idiopathic arthritis followed for 27 years. Oral Surg Oral Med Oral the 1 last update 2020/05/25 Pathol Oral Radiol Endod. 2009;108(1):114–23.Arvidsson LZ, Flato B, Larheim TA. Radiographic TMJ abnormalities in patients with juvenile idiopathic arthritis followed for 27 years. Oral Surg Oral Med Oral Pathol Oral Radiol Endod. 2009;108(1):114–23.
Larheim TA, et al. The temporomandibular joint in juvenile rheumatoid arthritis. Radiographic changes related to clinical and laboratory parameters in 100 children. Scand J Rheumatol. 1982;11(1):5–12.
- Arthritis Curehow to Arthritis Cure for 43.
Arthritis Curehow to Arthritis Cure for Bakke M, et al. Orofacial pain, jaw function, and temporomandibular disorders in women with a history of juvenile chronic arthritis or persistent juvenile chronic arthritis. Oral Surg Oral Med Oral Pathol Oral Radiol Endod. 2001;92(4):406–14.
Kvien TK, et al. Radiographic temporomandibular joint abnormalities in patients with juvenile chronic arthritis during a controlled study of sodium aurothiomalate and D-penicillamine. Br J Rheumatol. 1986;25(1):59–66.
Caso F, et al. Pharmacological treatment of spondyloarthritis: exploring the effectiveness of nonsteroidal anti-inflammatory drugs, traditional disease-modifying antirheumatic drugs and biological therapies. Ther Adv Chronic Dis. 2015;6(6):328–38.
Ai R, et al. Joint-specific DNA methylation and transcriptome signatures in rheumatoid arthritis identify distinct pathogenic processes. Nat Commun. 2016;7:11849.
Arthritis Curehow to Arthritis Cure for Twilt M, et al. Long-term followup of temporomandibular joint involvement in juvenile idiopathic arthritis. Arthritis Rheum. 2008;59(4):546–52.
- for 1 last update 2020/05/25 48.48.
Ince DO, Ince A, Moore TL. Effect of methotrexate on the temporomandibular joint and facial morphology in juvenile rheumatoid arthritis patients. Am J Orthod Dentofac Orthop. 2000;118(1):75–83.
- for 1 last update 2020/05/25 49.49.
Stoll ML, Cron RQ, Saurenmann RK. Systemic and intra-articular anti-inflammatory therapy of temporomandibular joint arthritis the 1 last update 2020/05/25 in children with juvenile idiopathic arthritis. Semin Orthod. 2015;21(2):125–33.Stoll ML, Cron RQ, Saurenmann RK. Systemic and intra-articular anti-inflammatory therapy of temporomandibular joint arthritis in children with juvenile idiopathic arthritis. Semin Orthod. 2015;21(2):125–33.
Stoustrup P, et al. Intra-articular steroid injection for temporomandibular joint arthritis in juvenile idiopathic arthritis: a systematic review on efficacy and safety. Semin Arthritis Rheum. 2013;43(1):63–70.
Lochbuhler N, et al. Magnetic resonance imaging assessment of temporomandibular joint involvement and mandibular growth following corticosteroid injection in juvenile idiopathic arthritis. J Rheumatol. 2015;42(8):1514–22.
Stoll ML, Amin D, Poholek CH, Harvey RJ, Young D, Cron RQ, and Waite PD. Risk factors for heterotopic bone of the temporomandibular joint in children with chronic arthritis treated with intraarticular therapy. J Rheumatology. https://doi.org/10.3899/jrheum.171306.
Schindler C, et al. Severe temporomandibular dysfunction and joint destruction after intra-articular injection of triamcinolone. J Oral Pathol Med. 2005;34(3):184–6.
Aggarwal S, Kumar A. A cortisone-wrecked and bony ankylosed temporomandibular joint. Plast Reconstr Surg. 1989;83(6):1084–5.
Arthritis Curehow to Arthritis Cure for Stoll ML, et al. Magnetic for 1 last update 2020/05/25 resonance imaging findings following intraarticular infliximab therapy for refractory temporomandibular joint arthritis among children with juvenile idiopathic arthritis. J Rheumatol. 2015;42(11):2155–9.Stoll ML, et al. Magnetic resonance imaging findings following intraarticular infliximab therapy for refractory temporomandibular joint arthritis among children with juvenile idiopathic arthritis. J Rheumatol. 2015;42(11):2155–9.
Stoll ML, et al. Safety and efficacy of intra-articular infliximab therapy for treatment-resistant temporomandibular joint arthritis in children: a retrospective study. Rheumatology (Oxford). 2013;52(3):554–9.
Nikas SN, et al. Treatment of resistant rheumatoid arthritis by intra-articular infliximab injections: a pilot study. Ann Rheum Dis. 2004;63(1):102–3.
Fiocco U, et al. Synovial effusion and synovial fluid biomarkers in psoriatic arthritis to assess intraarticular tumor necrosis factor-alpha blockade in the knee joint. Arthritis Res Ther. 2010;12(4):R148.
Arthritis Curehow to Arthritis Cure for Conti F, et al. Intra-articular infliximab in patients with rheumatoid arthritis and psoriatic arthritis with monoarthritis resistant to local glucocorticoids. Clinical efficacy extended to patients on systemic anti-tumour necrosis factor. alpha Ann Rheum Dis. 2008;67(12):1787–90.
Liang. D.F., et al., [A randomized, single-blind, parallel, controlled clinical study on single intra-articular injection of etanercept in treatment of inflammatory knee arthritis]. Zhonghua Nei Ke Za Zhi. 2010;49(11):930–4.
- for 1 last update 2020/05/25 61.61.
Bliddal H, et al. A randomized, controlled study of a single intra-articular injection of etanercept or glucocorticosteroids in patients with rheumatoid arthritis. Scand J Rheumatol. 2006;35(5):341–5.
Carubbi F, et al. Safety and efficacy of intra-articular anti-tumor necrosis factor alpha agents compared to corticosteroids in a treat-to-target strategy in patients with inflammatory arthritis and monoarthritis flare. Int J Immunopathol Pharmacol. 2016;29(2):252–66.
- Arthritis Curehow to Arthritis Cure for 63.
Alstergren P, Larsson PT, Kopp S. Successful treatment with multiple intra-articular injections of infliximab in a patient with psoriatic arthritis. Scand J Rheumatol. 2008;37(2):155–7.
Olsen-Bergem H, Bjornland T. A cohort study of patients with juvenile idiopathic arthritis and arthritis of the temporomandibular joint: outcome of arthrocentesis with and without the use of steroids. Int J Oral Maxillofac Surg. 2014;43(8):990–5.
Kinard BE, et al. Arthroscopy of the temporomandibular joint in patients with juvenile idiopathic arthritis. J Oral Maxillofac Surg. 2016;74(7):1330–5.
- for 1 last update 2020/05/25 66.66.
Antonarakis GS, et al. Benefit of temporomandibular joint lavage with intra-articular steroids versus lavage alone in the Management of Temporomandibular Joint Involvement in juvenile idiopathic arthritis. J Oral Maxillofac Surg. 2018; in press.
Mina R, et al. Effectiveness of dexamethasone iontophoresis for temporomandibular joint involvement in juvenile idiopathic arthritis. Arthritis Care Res (Hoboken). 2011;63(11):1511–6.
Li LC, et al. The efficacy of dexamethasone iontophoresis for the treatment of rheumatoid arthritic knees: a pilot study. Arthritis Care Res. 1996;9(2):126–32.
Ozgocmen S, et al. Glucocorticoid iontophoresis for Achilles tendon enthesitis in ankylosing spondylitis: significant response documented for 1 last update 2020/05/25 by power Doppler ultrasound. Rheumatol Int. 2005;25(2):158–60.Ozgocmen S, et al. Glucocorticoid iontophoresis for Achilles tendon enthesitis in ankylosing spondylitis: significant response documented by power Doppler ultrasound. Rheumatol Int. 2005;25(2):158–60.
Pedersen TK, Carlaberta B. Functional and orthopedic treatment in developing dentofacial growth deviation in juvenile idiopathic arthritis. Semin Orthod. 2015;21(2):134–9.
Stoustrup P, et al. Management of temporomandibular joint arthritis-related orofacial symptoms in juvenile idiopathic arthritis by the use of a stabilization splint. Scand J Rheumatol. 2014;43(2):137–45.
Stoustrup P, et al. Orthopaedic splint treatment can reduce mandibular asymmetry caused by unilateral temporomandibular involvement in juvenile idiopathic arthritis. Eur J Orthod. 2013;35(2):191–8.
Tulloch JF, et al. The effect of early intervention on skeletal pattern in class II malocclusion: a randomized clinical trial. Am J Orthod Dentofac Orthop. 1997;111(4):391–400.
Portelli M, et al. Temporomandibular joint involvement in a cohort of patients with juvenile Idiopatic arthritis and evaluation of the effect induced by functional orthodontic appliance: clinical and radiographic investigation. Eur J Paediatr Dent. 2014;15(1):63–6.
Kjellberg H, Kiliaridis S, Thilander B. Dentofacial growth in orthodontically treated and untreated children with juvenile chronic arthritis (JCA). A comparison with angle class II division 1 subjects. Eur J Orthod. 1995;17(5):357–73.
Farronato G, et al. Craniofacial growth in children affected by juvenile idiopathic arthritis involving the temporomandibular joint: functional therapy management. J Clin Pediatr Dent. 2009;33(4):351–7.
von Bremen J, et al. Histologic effects of mandibular protrusion splints in antigen-induced TMJ arthritis in rabbits. Pediatr Rheumatol Online J. 2017;15(1):27.
Arthritis Curehow to Arthritis Cure for Norholt SE, Bjornland E, Pedersen TK. Jaw surgery for correction of dentofacial anomalies caused by JIA. Semin Orthod. 2015;21(2):140–7.
Sahoo NK, et al. Distraction osteogenesis for Management of Severe OSA in Pierre Robin sequence: an approach to elude tracheostomy in infants. J Maxillofac Oral Surg. 2016;15(4):501–5.
- the 1 last update 2020/05/25 80.80.
Resnick CM. Temporomandibular joint reconstruction in the growing child. Oral Maxillofac Surg Clin North Am. 2018;30(1):109–21.
Khozeimeh F, et al. Comparative evaluation of low-level laser and systemic steroid therapy in adjuvant-enhanced arthritis of rat temporomandibular joint: a histological study. Dent Res J (Isfahan). 2015;12(3):215–23.
Lemos GA, et al. Low-level laser therapy stimulates tissue repair and reduces the extracellular matrix degradation in rats with induced arthritis in the temporomandibular joint. Lasers Med Sci. 2016;31(6):1051–9.
Arthritis Curehow to Arthritis Cure for Cotler HB, et al. The use of low level laser therapy (LLLT) for musculoskeletal pain. MOJ Orthop Rheumatol. 2015;2(5)
- Arthritis Curehow to Arthritis Cure for 84.
Meireles SM, et al. Assessment of the effectiveness of low-level laser therapy on the hands of patients with rheumatoid arthritis: a randomized double-blind controlled trial. Clin Rheumatol. 2010;29(5):501–9.
- Arthritis Curehow to Arthritis Cure for 85.
Lemos GA, et al. Effects of high molecular weight hyaluronic acid on induced arthritis of the temporomandibular joint in rats. Acta Histochem. 2015;117(6):566–75.
Strand V, Lim S, Takamura J. Evidence for safety of retreatment with a single intra-articular injection of Gel-200 for treatment of osteoarthritis of the the 1 last update 2020/05/25 knee from the double-blind pivotal and open-label retreatment clinical trials. BMC Musculoskelet Disord. 2016;17:240.Strand V, Lim S, Takamura J. Evidence for safety of retreatment with a single intra-articular injection of Gel-200 for treatment of osteoarthritis of the knee from the double-blind pivotal and open-label retreatment clinical trials. BMC Musculoskelet Disord. 2016;17:240.
Goto M, et al. Intra-articular injection of hyaluronate (SI-6601D) improves joint pain and synovial fluid prostaglandin E2 levels in rheumatoid arthritis: a multicenter clinical trial. Clin Exp Rheumatol. 2001;19(4):377–83.
Kumai T, et al. The short-term effect after a single injection of high-molecular-weight hyaluronic acid in patients with enthesopathies (lateral epicondylitis, patellar tendinopathy, insertional Achilles tendinopathy, and plantar fasciitis): a preliminary study. J Orthop Sci. 2014;19(4):603–11.
Holwegner C, et al. Impact of local steroid or statin treatment of experimental temporomandibular joint arthritis on bone growth in young rats. Am J Orthod Dentofac Orthop. 2015;147(1):80–8.
Forero-Pena DA, Gutierrez FR. Statins as modulators of regulatory T-cell biology. Mediat Inflamm. 2013;2013:167086.
McCarey DW, et al. Trial of atorvastatin in rheumatoid arthritis (TARA): double-blind, randomised placebo-controlled trial. Lancet. 2004;363(9426):2015–21.
Tascilar K, et al. Statins and risk of rheumatoid arthritis - a nested case-control study. Arthritis Rheumatol. 2016;
Sarver DM, Janyavula S, Cron RQ. Condylar degeneration and diseases – local and systemic etiologies. Semin Orthod. 2013;19:89–96.
Bodine TP, et al. Surgical treatment of adolescent internal condylar resorption (AICR) with articular disc repositioning and orthognathic surgery in the growing patient--a pilot study. Prog Orthod. 2016;17:2.
Hugle B, et al. Isolated arthritis of the temporomandibular joint as the initial manifestation of juvenile idiopathic the 1 last update 2020/05/25 arthritis. J Rheumatol. 2017;44(11):1632–5.Hugle B, et al. Isolated arthritis of the temporomandibular joint as the initial manifestation of juvenile idiopathic arthritis. J Rheumatol. 2017;44(11):1632–5.
- the 1 last update 2020/05/25 96.96.
Young A. Idiopathic condylar resorption: the current understanding in diagnosis and treatment. J Indian Prosthodont Soc. 2017;17(2):128–35.
Sansare K, et al. Management-related outcomes and radiographic findings of idiopathic condylar resorption: a systematic review. Int J Oral Maxillofac Surg. 2015;44(2):209–16.
- Arthritis Curehow to Arthritis Cure for 98.
Wolford LM, Goncalves JR. Condylar resorption of the temporomandibular joint: how do we treat it? Oral Maxillofac Surg Clin North Am. 2015;27(1):47–67.
Abramowicz S, et the 1 last update 2020/05/25 al. Juvenile arthritis: current concepts in terminology, etiopathogenesis, diagnosis, and management. Int J Oral Maxillofac Surg. 2016;45(7):801–12.Abramowicz S, et al. Juvenile arthritis: current concepts in terminology, etiopathogenesis, diagnosis, and management. Int J Oral Maxillofac Surg. 2016;45(7):801–12.
Wolford LM, Galiano A. Adolescent internal condylar resorption (AICR) of the temporomandibular joint, part 1: a review for diagnosis and treatment considerations. Cranio. 2017:1–10.
Zulian F, et al. Triamcinolone acetonide and hexacetonide intra-articular treatment of symmetrical joints in juvenile idiopathic arthritis: a double-blind trial. Rheumatology (Oxford). 2004;43(10):1288–91.
- Arthritis Curehow to Arthritis Cure for 102.
Muller L, et al. Maximal mouth opening capacity: percentiles for healthy children 4-17 years of age. Pediatr Rheumatol Online J. 2013;11:17.
Stoustrup P, et al. Smallest detectable differences in clinical functional temporomandibular joint examination variables in juvenile idiopathic arthritis. Orthod Craniofac Res. 2013;16(3):137–45.
Trachana M, et al. Safety and efficacy of adalimumab treatment in Greek children with juvenile idiopathic arthritis. Scand J Rheumatol. 2011;40(2):101–7.
Tambralli A, et al. High doses of infliximab in the management of juvenile idiopathic arthritis. J Rheumatol. 2013;40(10):1749–55.
Ringold S, et al. Intraarticular corticosteroid injections of the temporomandibular joint in juvenile idiopathic arthritis. J Rheumatol. 2008;35(6):1157–64.
Isola G, et al. The effect of a functional appliance in the management of temporomandibular joint disorders in patients with juvenile idiopathic arthritis. Minerva Stomatol. 2017;66(1):1–8.
- for 1 last update 2020/05/25 108.108.
Gerss J, et al. Phagocyte-specific S100 proteins and high-sensitivity C reactive protein as biomarkers for a risk-adapted treatment to maintain remission in juvenile idiopathic arthritis: a comparative study. Ann Rheum Dis. 2012;71(12):1991–7.
Wallace CA, Ruperto N, Giannini E. Preliminary criteria for clinical remission for select categories of juvenile idiopathic arthritis. J Rheumatol. 2004;31(11):2290–4.
- Arthritis Curehow to Arthritis Cure for 110.
Broughton T, Armon K. Defining juvenile idiopathic arthritis remission and optimum time for disease-modifying anti-rheumatic drug withdrawal: why we need a consensus. Paediatr Drugs. 2012;14(1):7–12.
Chang CY, Meyer RM, Reiff AO. Impact of medication withdrawal method on flare-free survival in patients with juvenile idiopathic arthritis on combination therapy. Arthritis Care Res (Hoboken). 2015;67(5):658–66.
Foell D, et al. Methotrexate withdrawal at 6 vs 12 months in juvenile idiopathic arthritis in remission: a randomized clinical trial. JAMA. 2010;303(13):1266–73.
Arthritis Curehow to Arthritis Cure for Baszis K, et al. Clinical outcomes after withdrawal of anti-tumor necrosis factor alpha therapy in patients with juvenile idiopathic arthritis: a twelve-year experience. Arthritis Rheum. 2011;63(10):3163–8.
Simonini G, et al. Flares after the 1 last update 2020/05/25 withdrawal of biologic therapies in juvenile idiopathic arthritis: clinical and laboratory correlates of remission duration. Arthritis Care Res (Hoboken). 2017;Simonini G, et al. Flares after withdrawal of biologic therapies in juvenile idiopathic arthritis: clinical and laboratory correlates of remission duration. Arthritis Care Res (Hoboken). 2017;
Kahn J, et al. Is there long-term signal intensity increase in the central nervous system on T1-weighted images after MR imaging with the Hepatospecific contrast agent Gadoxetic acid? A cross-sectional study in 91 patients. Radiology. 2017;282(3):708–16.
Tedeschi E, et al. Gadolinium retention in the body: what we know and what we can do. Radiol Med. 2017;122(8):589–600.
Wang YX, et al. Total gadolinium tissue deposition and skin structural findings following the administration of structurally different gadolinium chelates in healthy and ovariectomized female rats. Quant Imaging Med Surg. 2015;5(4):534–45.
Frenzel T, et al. Quantification and assessment of the chemical form of residual gadolinium in the brain after repeated Administration of Gadolinium-Based Contrast Agents: comparative study in rats. Investig Radiol. 2017;52(7):396–404.
Schlaudecker JD, Bernheisel CR. Gadolinium-associated nephrogenic systemic fibrosis. Am Fam Physician. 2009;80(7):711–4.
Arabshahi B, Cron RQ. Temporomandibular joint arthritis in juvenile idiopathic arthritis: the forgotten joint. Curr Opin Rheumatol. 2006;18(5):490–5.
Stoll ML, Cron RQ. Treatment the 1 last update 2020/05/25 of juvenile idiopathic arthritis: a revolution in care. Pediatr Rheumatol Online J. 2014;12:13.Stoll ML, Cron RQ. Treatment of juvenile idiopathic arthritis: a revolution in care. Pediatr Rheumatol Online J. 2014;12:13.
- Arthritis Curehow to Arthritis Cure for 122.
Arabshahi B, et al. Utility of corticosteroid injection for temporomandibular arthritis in children with juvenile idiopathic arthritis. Arthritis Rheum. 2005;52(11):3563–9.
Parra the 1 last update 2020/05/25 DA, et al. Use and accuracy of US guidance for image-guided injections of the temporomandibular joints in children with arthritis. Pediatr Radiol. 2010;40(9):1498–504.Parra DA, et al. Use and accuracy of US guidance for image-guided injections of the temporomandibular joints in children with arthritis. Pediatr Radiol. 2010;40(9):1498–504.
- Arthritis Curehow to Arthritis Cure for 124.
Habibi S, et al. Safety and efficacy of US-guided CS injection into temporomandibular joints in children with active JIA. Rheumatology (Oxford). 2012;51(5):874–7.
Stoll ML, et al. Intra-articular corticosteroid injections to the temporomandibular joints are safe and appear to be effective therapy in children with juvenile idiopathic arthritis. J Oral Maxillofac Surg. 2012;70(8):1802–7.
Stoustrup P, et al. Temporomandibular joint steroid injections in patients with juvenile idiopathic arthritis: an observational pilot study on the long-term effect on signs and symptoms. Pediatr Rheumatol Online J. 2015;13:62.
Arthritis Curehow to Arthritis Cure for Resnick CM, et al. Quantifying the effect of temporomandibular joint intra-articular steroid injection on synovial enhancement in juvenile idiopathic arthritis. J Oral Maxillofac Surg. 2016;74(12):2363–9.
Resnick CM, et al. Is intra-articular steroid injection to the temporomandibular joint for juvenile idiopathic arthritis more effective and efficient when performed with image guidance? J Oral Maxillofac Surg. 2017;75(4):694–700.
- Department of Pediatrics, University of Alabama at Birmingham (UAB), 1600 7th Avenue South, Children’s Park Place North Suite G10, Birmingham, 35233, AL, USA
- Matthew L. Stoll
- & Randy Q. Cron
- Department of Orthodontics, UAB, 1720 2nd Avenue South, School of Dentistry Building 305, Birmingham, 35294, AL, USA
- Chung H. Kau
- Department of Oral and Maxillofacial Surgery, UAB, 1720 2nd Avenue South, School of Dentistry Building 419, Birmingham, 35294, AL, USA
- Peter D. Waite
- Matthew L. Stoll
- Arthritis Curehow to Arthritis Cure for Chung H. Kau
- Peter D. Waite
- Randy Q. Cron
All authors contributed to the writing of this manuscript and approved the final version.
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Stoll, M.L., Kau, C.H., Waite, P.D. et al. Temporomandibular joint arthritis in juvenile idiopathic arthritis, now what?. Pediatr Rheumatol 16, 32 (2018). https://doi.org/10.1186/s12969-018-0244-y
Arthritis Curehow to Arthritis Cure for Received:
Accepted the 1 last update 2020/05/25 : :
- Intraarticular for 1 last update 2020/05/25 corticosteroidsIntraarticular corticosteroids
- Juvenile idiopathic arthritis
- Magnetic for 1 last update 2020/05/25 resonance imagingMagnetic resonance imaging
- Temporomandibular joint