目的探讨超声骨刀在下颌角截骨术中的应用效果。方法选取单纯下颌角截骨整形患者35例,术中使用超声骨刀配以骨刀手具进行截骨。结果全部35例患者术后经6个月至5年随访,口腔全景片示下颌骨双侧对称,下颌骨下缘平滑,下颌神经管清晰完整。1例患者术后单侧面部血肿,对症处理2周后完全恢复。结论下颌角截骨整形术中使用超声骨刀,截骨效果良好,患者对手术效果满意。

Objective To investigate the effect of the ultrasonic osteotome in mandibular angle osteotomy. Methods Thirty-five cases who received simple mandibular angle osteotomy and regular reexamination were selected. Ultrasonic osteotome and bone knife handle were used cooperatively during the surgery. Results All 35 cases were followed up for 6 months to 5 years. Review of oral panorama film showed mandibular bilateral symmetry, smooth tnandibnlar margin, clear and complete mandibular nerve tube. Unilateral facial hematoma was observed in 1 patient. And the patient was recovered after 2 weeks of hematoma puncture and physical therapy. Conclusion Good results can be achieved in mandibular angle osteotomy by using ultrasonic osteotome.