Pathology
Physical Findings Associated With Active Temporomandibular Joint Inflammation in Children With Juvenile Idiopathic Arthritis

Presented at the 94th Annual Meeting of the American Association of Oral and Maxillofacial Surgeons, San Diego, CA, September 10-15, 2012.
https://doi.org/10.1016/j.joms.2013.04.009Get rights and content

Purpose

To identify the physical findings associated with active temporomandibular joint (TMJ) inflammation (ie, synovitis) in children with juvenile idiopathic arthritis (JIA).

Patients and Methods

This was a retrospective study of children with JIA evaluated at Boston Children's Hospital. The patients were included if they had a confirmed diagnosis of JIA and had undergone a TMJ magnetic resonance imaging (MRI) study with contrast. Medical records and imaging studies were reviewed to document the demographic, physical (ie, facial asymmetry, joint noises, maximal incisal opening, deviation on opening, occlusal cant), and MRI findings. The outcome variable was TMJ synovitis on the MRI study. Descriptive and bivariate statistics were computed. Multiple regression models were used to identify associations (P ≤ .05, significance).

Results

A total of 51 patients with JIA were evaluated during the study period. Of these, 43 patients (33 girls) with a mean age of 11.4 years met the inclusion criteria. MRI demonstrated TMJ synovitis in 27 patients. The age-adjusted limited maximal incisal opening (MIO) and deviation on opening were the only physical findings significantly associated with synovitis on MRI (P = .003 and P = .043, respectively). Using these parameters as predictors of synovitis, a limited MIO and deviation on opening had a high specificity (86% and 94%, respectively). Patients with a limited MIO were 6.7 times more likely to have synovitis than those with a normal MIO. All patients with a limited MIO and deviation on opening had TMJ synovitis on the MRI scan.

Conclusions

The results of this study indicate that, in children with JIA, limited MIO and deviation on opening can be used to predict the presence of TMJ synovitis. Documentation of these parameters should be an essential part of the clinical examination and longitudinal follow-up of children with JIA.

Section snippets

Patients and Methods

This was a retrospective study (institutional review board approval no. M10-03-0129 and M09-12-0641) of children with JIA evaluated at Boston Children's Hospital from September 2009 to September 2012. JIA was diagnosed by a pediatric rheumatologist according to the International League of Associations for Rheumatology criteria. Patients were included if they had a confirmed diagnosis of JIA, had been evaluated by the Rheumatology and Oral and Maxillofacial Surgery services and had undergone a

Results

A total of 51 patients with JIA were evaluated during the study period. We identified 43 patients (33 girls) with mean age of 11.4 years (range, 3-16) who met the inclusion criteria. The arthritis medications included disease-modifying antirheumatic drugs such as methotrexate (n = 30, 69.8%); biologic agents, such as tumor necrosis factor-α inhibitor such as infliximab (n = 10, 23.3%); scheduled nonsteroidal anti-inflammatory medications such as naproxen (n = 7, 16.3%); and other (n = 1, 2.3%).

Discussion

Untreated TMJ synovitis can lead to functional limitations, jaw asymmetry, and/or malocclusion.1, 2, 3, 7, 15 Early detection and treatment can minimize these adverse outcomes. Although MRI with contrast is the most sensitive method for detecting TMJ synovitis in children with JIA,10, 11, 13 it has some limitations. MRI is costly, time consuming, can require general anesthesia, and specific TMJ surface coils might not be available at every facility.

Despite the occasional presence of pain, this

References (18)

  • S. Abramowicz et al.

    Differentiating arthritic from myofascial pain in Children with juvenile idiopathic arthritis—Preliminary report

    J Oral Maxillofac Surg

    (2013)
  • S. Abramowicz et al.

    Magnetic resonance imaging of temporomandibular joints in children with arthritis

    J Oral Maxillofac Surg

    (2011)
  • M. Twilt et al.

    Temporomandibular involvement in juvenile idiopathic arthritis

    J Rheumatol

    (2004)
  • M. Twilt et al.

    Facioskeletal changes in children with juvenile idiopathic arthritis

    Ann Rheum Dis

    (2006)
  • N. Tzaribachev et al.

    Juvenile idiopathic arthritis: The silent killer of pediatric temporomandibular joints

    Z Rheumatol

    (2010)
  • H. Kjellberg

    Craniofacial growth in juvenile chronic arthritis

    Acta Odontol Scand

    (1998)
  • R.E. Petty

    Frequency of uncommon diseases: Is juvenile idiopathic arthritis under recognized?

    J Rheumatol

    (2002)
  • S. Ringold et al.

    The temporomandibular joint in juvenile idiopathic arthritis: Frequently used and frequently arthritic

    Pediatr Rheumatol

    (2009)
  • P. Kahn

    Juvenile idiopathic arthritis an update for the clinician

    Bull NYU Hosp Jt Dis

    (2012)
There are more references available in the full text version of this article.

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This project was supported in part by Oral and Maxillofacial Surgery Foundation/American Association of Maxillofacial Surgeons Faculty Educator Development Award (S.A.) and the Massachusetts General Hospital Oral and Maxillofacial Surgery Education and Research Fund.

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