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  • Title: Preservation of disc for treatment of traumatic temporomandibular joint ankylosis.
    Author: Long X, Li X, Cheng Y, Yang X, Qin L, Qiao Y, Deng M.
    Journal: J Oral Maxillofac Surg; 2005 Jul; 63(7):897-902. PubMed ID: 16003613.
    Abstract:
    PURPOSE: A new operating method was used to treat traumatic temporomandibular joint (TMJ) ankylosis, to restore the structure of the TMJ, to improve the secondary maxillofacial deformity, and prevent recurrence of TMJ ankylosis. PATIENTS AND METHODS: Thirty-six patients (20 females, 16 males; aged 5 to 54 years old) with TMJ ankylosis type II or III of 1 to 16 years' duration, with a maximal mouth opening from 0 to 15 mm preoperatively participated. The new method was to separate bony fusion between condyle and glenoid fossa, remove the condylar fragment that displaced medially or anteroinferiorly, mobilize the remains of the disc over the condylar stump and suture it with articular capsule, and shave the surface of the condylar stump and glenoid fossa smooth. RESULTS: Follow-up was performed from 1 to 7 years postoperatively in 21 cases. No recurrences occurred in patients whose TMJ disc was retained during operation. Patients had an average maximal mouth opening of 33.7 mm postoperatively. An 11-year-old patient showed an improved facial symmetry after surgery. CONCLUSION: By restoring the normal structure of the TMJ and preservation of the disc, recurrence of traumatic TMJ ankylosis and facial deformity in younger patients can be prevented.
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