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ORIGINAL ARTICLE - PROSPECTIVE STUDY
Year : 2016  |  Volume : 6  |  Issue : 1  |  Page : 68-74

Distraction osteogenesis in the treatment of temporomandibular joint ankylosis with mandibular micrognathia


1 Department of Oral and Maxillofacial Surgery, Govt. Dental College and Research Institute, Fort, Bengaluru, Karnataka, India
2 Govt. Dental College and Research Institute, Fort, Bengaluru, Karnataka, India

Correspondence Address:
Prof. Girish B Giraddi
Department of Oral and Maxillofacial Surgery, Govt. Dental College and Research Institute, Fort, Bengaluru - 560 002, Karnataka
India
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DOI: 10.4103/2231-0746.186125

PMID: 27563611

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Aims: The aims of the study were to evaluate the efficacy of simultaneous interpositional arthroplasty with distraction osteogenesis (DO) as a single procedure and to give the patient acceptable functional rehabilitation with correction of the gross facial asymmetry. Materials and Methods: Nine patients of temporomandibular joint (TMJ) ankylosis with micrognathia were treated with interpositional arthroplasty and simultaneous DO and followed for a period of minimum 3 years. Preoperative, immediate postoperative, at the end of distraction, at 6 months and 3 years postdistraction consolidation radiographs were taken along with the clinical examination for mouth opening, deviation, length of the mandible and ramus, midline shift, occlusal cant, and occlusion. Results: The results showed an increase in the mouth opening, length of the mandible and ramus height, correction of deviation, occlusion, and midline shift. Relapse was not seen in any case, rather one patient developed infection at the distractor site and two patients had fracture of the roots of the teeth at the osteotomy site. There was an overall improvement in the facial asymmetry. Conclusion: Simultaneous interpositional arthroplasty with DO should be used to correct TMJ ankylosis associated with facial asymmetry/micrognathia, as it reduces the need for second surgery, thereby saving the trauma of a second surgery and difficulty in intubation, increases the length of the mandible, corrects the deformity, thereby resulting in an acceptable facial esthetics and function.


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