The value of long-term follow-up of mandibular advancement surgery in patients with a low to normal mandibular plane angle
作者： J. P. B. Bouwman , D. B. Tuinzing , P. J. Kostense , R. A. van Teeseling , H. Mokhtari
DOI: 10.1007/BF03043574
关键词: Medicine 、 Osteotomy 、 Surgery 、 Internal fixation 、 Dentistry 、 Mandible 、 Cephalometric analysis 、 Retrognathia 、 Condylar resorption 、 Radiography 、 Sagittal plane
摘要: The objective of this study was to evaluate retrospectively the stability mandibular advancement via bilateral sagittal split osteotomies. Two fixation methods were compared: intermaxillary (IMF) and rigid internal (RIF). hypothesis that, in patients with a low normal plane angle (MPA) retrognathia, osteotomy (BSSO) advance mandible is predictable stable procedure that no significant changes occur after 1 year. Twelve deficiency MPA (mean 24.7°, range 20.3°–30.7°) underwent BSSO IMF. follow-up period at least 5 years 6.3, 5–9.1 years). Cephalometric analysis using commercial software package performed on radiographs taken immediately preoperatively (TO), within 6 weeks postoperatively (T1), year post-operatively (T2), (T3). average B point 4.7 mm (range: 3–7 mm). assessment regard relapse showed change. One patient due condylar resorption. Forty-five consecutive treated RIF. Radiographs (T0), (T2). This group had mean 26.2°, 10°–32°. B-point 4.4 (range 1–10 No clinically T2.
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