Purpose: Recurrence is a major concern in management of temporomandibular joint ankylosis. In this study functional outcomes of gap arthroplasty (group I) and temporalis myofascial interposition arthroplasty (group II) are compared.
Materials And Methods: Preoperative, intraoperative, and follow-up data were noted from our departmental database. Outcome variables were postoperative mouth opening, open bite, recurrence, and facial nerve dysfunction. The χ2 test, Fisher test, t test, 2-sample Wilcoxon rank sum test, and logistic regression analysis were used.
Results: Group I comprised 207 patients, and group II comprised 55 patients. The mean age was 12.9 years (SD, 7.0 years). There were 220 nonrecurrent and 42 recurrent cases. The mean follow-up period was 3.78 years (SD, 3.0 years). In first time-operated cases, the recurrence rate was 14.7% in group I and 4.8% in group II. In recurrent cases, the recurrence rate was 34.5% and 30.8%, respectively. The differences were statistically insignificant.
Conclusions: In first-time operated temporomandibular joint ankylosis cases, both treatments are satisfactory in preventing recurrence, but the recurrence rate increases with previous recurrences.
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