Lee Gyu-Tae, Jung Hwi-Dong, Kim Sang Yoon, Park Hyung-Sik, Jung Young-Soo
Department of Oral & Maxillofacial Surgery, Oral Science Research Institute, Yonsei University College of Dentistry, Seoul, Republic of Korea.
Private Practice, Vienna, VA, USA.
Br J Oral Maxillofac Surg. 2014 Apr;52(4):363-8. doi: 10.1016/j.bjoms.2013.12.009. Epub 2014 Jan 28.
The purpose of this study was to compare postoperative stability using biodegradable screws with that of metal plates for fixation of advancement genioplasty. We studied patients who had advancement genioplasty alone or at the same time as other orthognathic surgery including mandibular setback. We assessed the lateral cephalographs at different time points (preoperatively, and 7 days, 3 months, 6 months, and 12 months postoperatively). A total of 54 patients were enrolled and 27 patients were assigned to each group. The position of pogonion was stable 12 months postoperatively, and the amount of skeletal advancement was reflected in soft tissue close to 100%. There were no clinical differences between biodegradable screws and conventional metal plates used for fixation. Biodegradable fixation for advancement genioplasty is a good option for patients who would require a second operation for removal of the plates.
本研究的目的是比较使用可生物降解螺钉与金属板固定前移颏成形术的术后稳定性。我们研究了单纯接受前移颏成形术或同时接受包括下颌后缩在内的其他正颌外科手术的患者。我们在不同时间点（术前、术后7天、3个月、6个月和12个月）评估头颅侧位片。共纳入54例患者，每组27例。术后12个月颏点位置稳定，骨骼前移量在软组织中反映接近100%。用于固定的可生物降解螺钉与传统金属板之间无临床差异。对于需要二次手术取出金属板的患者，可生物降解固定前移颏成形术是一个不错的选择。
