117例因癌肿涉及下齿槽而行下颌骨部分切除术,作者对其中58例进行了三期修复手术:第一期在截除肿瘤及其周围组织后将残剩的下颌骨与上颌骨固定以维持手术前状态。第二期手术约在3个月后施行,从颏下切口,在下颌骨两侧残端间作骨移植以重建下颌骨。约在第一期手术后六个月再行第三期手术,用皮肤在口腔内植皮并 One hundred and seventy-one cases underwent partial mandibular resection due to cancer involving the lower alveolar space. The authors performed three stages of repair surgery in 58 of them: the first stage of resection of the remaining mandible and maxilla following removal of the tumor and its surrounding tissue Fixed to maintain pre-operative condition. The second phase of surgery is performed after about 3 months. From the submental incision, a bone graft is made between the two ends of the mandible to rebuild the mandible. About six months after the first phase of operation, the third operation was performed again. The skin was implanted in the oral cavity with the skin