Objective:Compare outcomes of surgical techniques in percutaneous bone-anchored hearing implant surgery.Study Design:Matched retrospective cohort study.Setting:Tertiary referral center.Patients:Electronic review of adult and pediatric patients who underwent bone conduction device surgery by either the Minimally-invasive Ponto Surgery (MIPS) technique or the linear incision with no soft tissue removal (LnSTR) technique or between August 2015 and April 2018 at our facility.Intervention:Patients in MIPS group underwent Minimally invasive Ponto Surgery (MIPS) technique, while those in LnSTR group underwent LnSTR technique.Main Outcome Measure:Major outcome was presence/severity of localized skin reaction. Secondary outcomes included cosmetic outcome, revision surgery, minor adverse events, device utilization, and postoperative aided speech recognition thresholds (SRTs) across 250 to 4000 Hertz (Hz).Results:Fifty patients met inclusion criteria. There was a significantly lower rate of localized cutaneous reactions for the MIPS group (4.5%) compared with LnSTR group (33.3%; p = 0.026). Rate of revision surgery was significantly less for MIPS (13.6%) compared with LnSTR (20.8%; p = 0.008). Occurrence of poor cosmetic outcome was noted significantly less for the MIPS group (9.1%) compared with LnSTR patients (20.8%; p = 0.005). Minor adverse events and aided SRTs were comparable between groups.Conclusions:MIPS leads to a statistically significant decrease in localized cutaneous reaction compared with LnSTR. Both the LnSTR and MIPS techniques are safe and effective in the treatment of hearing loss, however MIPS may be superior in certain cases by offering improved healing, decreasing needs for wound care, and possibly decreasing need for frequent follow up.
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