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Temporomandibular Joint Replacement Using Stock Alloplastic Graft in the Treatment of Ankylosis: A Case Report.

INTRODUCTION: This paper aims to assess the suitability and effectiveness of temporomandibular joint replacement (TMJR) devices to treat a case of re-ankylosis and association of tuberculosis (TB) with reduced mouth opening. Traditional protocols for the treatment of temporomandibular joint (TMJ) ankylosis have preferred autologous grafts for reconstruction. Usage of TMJR devices have been reserved for very specific conditions.

CASE DESCRIPTION: We present a case of a patient previously treated for ankylosis using a sternoclavicular graft, who came with a chief complaint of progressive decrease in mouth opening. She also gave a history of pulmonary TB a year back. Investigations revealed no active TB. Images and clinical presentation were consistent with bilateral ankylosis. The treatment plan consisted of resection of ankylotic mass on the left side and removal of the failed graft and reconstruction with Biomet stock TMJR prosthesis on the left side.

DISCUSSION: Stock device has proven to be reliable option in planned TMJR procedures. Osteoarticular TB should be ruled out in patients with a history and features of TB.

CONCLUSION: Stock TMJR devices are an effective and viable option for the treatment of re-ankylosis. This ensures almost immediate possibility of physiotherapy and long-term results including maintenance of mouth opening and function. Osteoarticular TB can cause trismus and painful joints which may be misdiagnosed. Any patient with reduced mouth opening with a history of TB should be investigated for possible extrapulmonary TB.

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