Comparison of the clinical results between endoscopically assisted transoral approach and retromandibular approach for surgical treatment of mandibular subcondyle fracture
Lee Woo-Yul, 조진용, 양성원,
소속 상세정보
( Lee Woo-Yul ) - Gachon University Gil Medical Center Department of Oral and Maxillofacial Surgery
조진용 ( Cho Jin-Yong ) - Gachon University Gil Medical Center Department of Oral and Maxillofacial Surgery
양성원 ( Yang Sung-Won ) - Gachon University Gil Medical Center Department of Oral and Maxillofacial Surgery
KMID : 0362720160540121045
Abstract
Purpose : Aim of this study is to describe and compare clinical results and complications epending on the surgical approaches for the mandibular subcondyle fracture
Materials and methods : The patients who had been diagnosed as the mandibular subcondyle fracture and underwent open reduction and internal fixation from May 2009 to December 2014 were included. They were divided into two groups depending on the surgical approaches; endoscopically assisted transoral approach and retromandibular approach. Association between the preoperative fracture classification and post-operative results was reviewed depending on the surgical approaches.
Results : The number of patients selected in this study was 33. Eighteen patients (male 7, female 11) underwent open reduction and internal fixation via retromandibular approach and fifteen patients (male 12, female 3) underwent open reduction and internal fixation via endoscopically assisted transoral approach. The mean age, follow up period, and operation time were 44.29 15.19 years, 9.97 7.82 months, and 161 89.44 minutes. Post-operative results were all “good” state in the retromandibular approach group regardless of the fracture classification but two patients in the endoscopically assisted transoral approach group underwent re-operation due to “poor” results. The fracture types of two were classified as displacement and lateral override at the same time. There was no statistically significant difference between two groups. Three patients in the retromandibular approach group had experienced facial nerve palsy (17%) temporarily. No one showed malocclusion in this study. There was no significant difference on the complications such as temporomandibular disorder, local infection, and condyle resorption depending on the surgical
approaches.
Conclusion : In this study, there was no significant difference on the complications between the two groups but etromandibular approach has advantage over endoscopically assisted transoral approach in case of the severely displaced subcondyle fracture.
키워드
Mandibular fracture;Surgical approach; Complication
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