Comparison of Two Surgical Techniques for Implantation of the Ponto® Bone Conduction Implant
TL;DR
MIPS was associated with a significantly shorter operative time than the linear incision technique, and both MIPS and LT appear to be safe techniques.
Abstract
Objectives: The aim of this study was to compare the surgical and postoperative clinical outcomes of punch-only and linear incision techniques for implantation of the Ponto® bone conduction implant. Methods: Surgical and follow-up data were collected from 101 patients: 46 treated with Minimally Invasive Ponto® Surgery (MIPS) and 55 with the linear incision technique (LT). The analysis focused on: (1) the surgical procedure, including operative time and intraoperative complications; (2) the healing process; and (3) long-term implant-site outcomes, including implant loss. Results: Median operative time was significantly shorter for MIPS than for LT (30 min vs. 40 min, p < 0.001). No major intraoperative complications were observed in either group. Adverse skin reactions were more frequent in the LT group than in the MIPS group (18.2% vs. 8.7%), but the difference was not statistically significant (p = 0.249). A single implant loss occurred in the LT group 18 months after surgery and was unrelated to failed osseointegration or the surgical technique, being caused by recurrent cholesteatoma. Conclusions: MIPS was associated with a significantly shorter operative time than the LT. Both MIPS and LT appear to be safe techniques. No statistically significant differences were detected between the groups with respect to adverse skin reactions or implant survival during the follow-up period.