颧骨L形截骨联合口内悬吊术防止术后软组织松弛的临床研究

Clinical research of prevention of postoperative soft tissue relaxation by L-shaped zygomatic osteotomy combined with intraoral ventrofixation

目的 改进口内入路颧骨L形截骨术,防止术后并发颧颊部软组织松垂.方法 选取76例颧部高突患者,随机分成对照组和实验组,分别行口内入路颧骨L形截骨术和口内入路颧骨L形截骨联合口内悬吊术,术后3～6个月随访,对比手术效果.结果 术后两组间颧颊部软组松垂发生率的比较,其差异有统计学意义（P=0.028）,实验组软组织松垂发生率明显低于对照组.结论 颧骨L形截骨联合口内悬吊术,可有效防止术后颧颊部软组织松垂的发生,值得临床推广应用.

Objective To improve the L-shaped zygomatic osteotomy through intraoral incision to prevent postoperative soft tissue relaxation of cheek. Methods Seventy-six patients with prominent pars zygomatica were randomly selected and divided into the control group and the experimental group. The patients in the control group underwent L-shaped zygomatic osteotomy through intraoral approach, the others in the experimental group were performed L-shaped zygomatic osteotomy combined with intraoral ventrofixation through intraoral approach. Then the resuits were compared after 3 to 6 months follow up. Results The incidence rate in the experimental group was lower than that in the control group, the difference between the two groups had statistical significance（ P =0. 028）. Conclusion This method of L-shaped zygomatic osteotomy combined with intraoral ventrofixation through intraoral approach is simple and effective for preventing the postoperative soft tissue relaxation.