Mark D Wilkie 1 , Kalyan M Chakravarthy 2 , Constantinos Mamais 2 , Robert H Temple 2 Show Affiliations »
Abstract
OBJECTIVE: Recently, a novel hydroxyapatite-coated concave bone-anchored hearing device abutment was introduced, the first designed specifically to improve outcomes in soft-tissue preservation osseointegrated hearing implant surgery. We sought to evaluate our early experience with this abutment. STUDY DESIGN: A single-center case series with planned data collection including patient-reported outcomes. SETTING: Tertiary referral center. SUBJECTS AND METHODS: The first 30 consecutive patients undergoing osseointegrated hearing implant surgery using the Cochlear DermaLock (BA400) abutment at our institution (February-September 2013) were studied. Follow-up was for a minimum of 6 months. The following data were collected: operative duration; wound healing; postoperative complications, chiefly soft-tissue reactions graded by Holger's classification; and postintervention patient-perceived health-related quality of life, as assessed by the Glasgow Benefit Inventory (GBI). RESULTS: The mean operating time was 16 minutes (range, 9-22 minutes). Favorable and rapid wound healing was observed in all cases. Three patients (10%) reported transient periabutment paraesthesia. Four patients (13.3%) suffered adverse soft-tissue reactions, all of which were successfully managed conservatively and graded as follows: Holger's grade 1 (n = 2), 2 (n = 1), and 3 (n = 1). Respective overall general health, social support, and physical health GBI mean scores were +38 (95% confidence interval [CI], 31 to 45), +51 (95% CI, 42 to 60), +19 (95% CI, 8 to 30), and +8 (95% CI, -1 to 17). CONCLUSION: Our preliminary clinical and patient-reported outcomes support soft-tissue preservation surgery and indicate that the technology on which the Cochlear DermaLock (BA400) abutment is based may enhance soft-tissue outcomes in this context. We recommend further appraisal of this approach on a larger scale with more extensive follow-up. © American Academy of Otolaryngology—Head and Neck Surgery Foundation 2014.
OBJECTIVE: Recently, a novel hydroxyapatite -coated concave bone-anchored hearing device abutment was introduced, the first designed specifically to improve outcomes in soft-tissue preservation osseointegrated hearing implant surgery. We sought to evaluate our early experience with this abutment. STUDY DESIGN: A single-center case series with planned data collection including patient -reported outcomes. SETTING: Tertiary referral center. SUBJECTS AND METHODS: The first 30 consecutive patients undergoing osseointegrated hearing implant surgery using the Cochlear DermaLock (BA400) abutment at our institution (February-September 2013) were studied. Follow-up was for a minimum of 6 months. The following data were collected: operative duration; wound healing; postoperative complications, chiefly soft-tissue reactions graded by Holger's classification; and postintervention patient -perceived health-related quality of life, as assessed by the Glasgow Benefit Inventory (GBI). RESULTS: The mean operating time was 16 minutes (range, 9-22 minutes). Favorable and rapid wound healing was observed in all cases. Three patients (10%) reported transient periabutment paraesthesia. Four patients (13.3%) suffered adverse soft-tissue reactions, all of which were successfully managed conservatively and graded as follows: Holger's grade 1 (n = 2), 2 (n = 1), and 3 (n = 1). Respective overall general health, social support, and physical health GBI mean scores were +38 (95% confidence interval [CI], 31 to 45), +51 (95% CI, 42 to 60), +19 (95% CI, 8 to 30), and +8 (95% CI, -1 to 17). CONCLUSION: Our preliminary clinical and patient -reported outcomes support soft-tissue preservation surgery and indicate that the technology on which the Cochlear DermaLock (BA400) abutment is based may enhance soft-tissue outcomes in this context. We recommend further appraisal of this approach on a larger scale with more extensive follow-up. © American Academy of Otolaryngology—Head and Neck Surgery Foundation 2014.
Entities: Chemical
Species
Keywords:
abutment; bone-anchored hearing implant; hydroxyapatite; minimal invasive surgery; osseointegrated implant; surgical technique
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Year: 2014
PMID： 25245135 DOI： 10.1177/0194599814551150
Source DB: PubMed Journal: Otolaryngol Head Neck Surg ISSN： 0194-5998 Impact factor: 3.497