摘要
目的 :探讨双侧升支矢状劈开截骨术 (BSSRO)后退下颌骨以钢丝结扎固定两骨段加颌间固定术后骨的稳定性 ,了解导致复发的有关因素。方法 :双侧下颌升支矢状劈开截骨手术后退下颌的患者 14例 ,于手术前 1周 ,手术后 1周 ,术后 6个月分别拍摄定位头颅侧位片及许勒位X线片 ,用于测量下颌移动的距离及确定下颌骨髁状突的位置。结果 :双侧下颌升支矢状劈开截骨后退术后 ,6个月的复发率为 2 7.2 % ,多元逐步回归分析示下颌后退的距离与复发相关。结论 :BSSRO后退下颌骨的距离越大 。
Objective: To observe the postoperative skeletal changes of mandibular setback via bilateral sagittal ramus split osteotomy (BSSRO) with circummandibular wiring and maxillomandibular fixation. Methods: BSSRO was performed in 14 cases to setback the mandible. The patients were followed up for 6 months by clinical observation and examined with lateral cephalometric radiographs and Schuller's position radiographs before and after surgery. Results: According to the measured parameters the ralapse extent was 27.2%. Multiple regression analysis showed the magnitude of the setback significantly accounted for relapse (P<0.01). Conclusion: The magnitude of the mandibular setback is the factor that predicts relapse.
出处
《实用口腔医学杂志》
CAS
CSCD
北大核心
2002年第4期358-360,共3页
Journal of Practical Stomatology
