Department of Otorhinolaryngology and Otoneurosurgery, University Hospital of Parma, Parma, Italy.
Department of Otorhinolaryngology, "Guglielmo da Saliceto" Hospital, Piacenza, Italy.
Acta Otorhinolaryngol Ital. 2021 Oct;41(5):474-480. doi: 10.14639/0392-100X-N1048.
To evaluate mean surgical time, incidence of soft tissue reactions, implant survival and intraoperative complications in both minimally invasive ponto surgery (MIPS) and the linear incision with tissue preservation technique (LT).
A retrospective review was carried out on 48 bone anchored hearing system (BAHS) patients between 2014 and 2019: 13 patients had undergone LT and formed one group, while 35 patients had undergone MIPS and formed the second group. Mean surgical time, intraoperative complications, implant loss and skin reaction were assessed at each post-operative examination. The Mann-Whitney U test was used for statistical analysis.
The difference in the mean surgical time of 15 mins for MIPS and 36 mins for LT was statistically significant. No intraoperative complications were reported and implant survival was 100% in both groups. The incidence of adverse skin reactions was 7.7% for the LT group and 0% for the MIPS group at first follow-up examination.
Surgical mean time is shorter for MIPS, making this procedure more suitable for local anaesthesia and more cost effective. Moreover, both LT and MIPS demonstrate good surgical outcomes in terms of skin reactions according to Holgers score and equally excellent implant survival.
评估微创桥小脑角手术（MIPS）与保留组织的直线切口技术（LT）的平均手术时间、软组织反应发生率、种植体存活率和术中并发症。
回顾性分析了 2014 年至 2019 年间 48 例骨锚定式听力系统（BAHS）患者的资料：13 例患者接受 LT，为一组；35 例患者接受 MIPS，为二组。在每次术后检查时评估平均手术时间、术中并发症、种植体丢失和皮肤反应。采用曼-惠特尼 U 检验进行统计学分析。
MIPS 的平均手术时间为 15 分钟，LT 的平均手术时间为 36 分钟，差异具有统计学意义。两组均未报告术中并发症，种植体存活率均为 100%。LT 组首次随访时皮肤不良反应发生率为 7.7%，MIPS 组为 0%。
MIPS 的手术时间更短，更适合局部麻醉，且更具成本效益。此外，根据 Holgers 评分，LT 和 MIPS 在皮肤反应方面均显示出良好的手术效果，种植体存活率同样优异。
