title: Surgical and audiological evaluation of the Baha BA400.
abstract: OBJECTIVE
  Despite extensive soft tissue reduction, the most common complications associated with bone-anchored hearing aid systems, also known as bone-anchored hearing implants, are related to adverse skin reactions around the abutment. The necessary soft tissue reduction also adds complexity to the surgical procedure. This study aimed to evaluate the surgical and audiological outcomes of a new connective interface of the Cochlear™ Baha® BA400 device implanted using the one-stage surgical technique.
  
  
  METHODS
  A multicentre, retrospective case series is presented, including data collected from three tertiary care institutions.
  
  
  RESULTS
  In total, 16 patients who had undergone bone-anchored hearing aid surgery over a 10- to 12-month period were assessed for hearing performance, implant stability and surgical complications.
  
  
  CONCLUSIONS
  This case series indicates that new abutments with a hydroxyapatite coating can be implanted percutaneously without soft tissue reduction. Furthermore, device implantation using this surgical technique may have some advantages compared with a conventional device and procedure combination over 12- to 16-months of follow up.
authors.affiliation: Department of Otorhinolaryngology,Kocaeli University Medical Faculty,Kocaeli,Turkey.
authors.forename: M
authors.initials: M
authors.lastname: Iseri
authors.affiliation: Department of Otorhinolaryngology,Istanbul Faculty of Medicine,Isparta,Turkey.
authors.forename: K S
authors.initials: KS
authors.lastname: Orhan
authors.affiliation: Department of Otorhinolaryngology,Suleyman Demirel University Medical Faculty,Isparta,Turkey.
authors.forename: M H
authors.initials: MH
authors.lastname: Yarıktaş
authors.affiliation: Department of Otorhinolaryngology,Kocaeli University Medical Faculty,Kocaeli,Turkey.
authors.forename: A
authors.initials: A
authors.lastname: Kara
authors.affiliation: Department of Otorhinolaryngology,Kocaeli University Medical Faculty,Kocaeli,Turkey.
authors.forename: M
authors.initials: M
authors.lastname: Durgut
authors.affiliation: Department of Otorhinolaryngology,Istanbul Faculty of Medicine,Isparta,Turkey.
authors.forename: D S
authors.initials: DS
authors.lastname: Ceylan
authors.affiliation: Department of Otorhinolaryngology,Istanbul Faculty of Medicine,Isparta,Turkey.
authors.forename: Y
authors.initials: Y
authors.lastname: Guldiken
authors.affiliation: Department of Otorhinolaryngology,Kocaeli University Medical Faculty,Kocaeli,Turkey.
authors.forename: I G
authors.initials: IG
authors.lastname: Keskin
authors.affiliation: Department of Otorhinolaryngology,Istanbul Faculty of Medicine,Isparta,Turkey.
authors.forename: K
authors.initials: K
authors.lastname: Değer
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D001299:Audiometry; D001672:Biocompatible Materials / Q000008:administration & dosage; D002648:Child; D019929:Cochlear Implantation / Q000009:adverse effects / Q000295:instrumentation* / Q000379:methods*; D003054:Cochlear Implants / Q000009:adverse effects*; D017886:Durapatite / Q000008:administration & dosage; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D011183:Postoperative Complications / Q000517:prevention & control; D011474:Prosthesis Design; D012189:Retrospective Studies; D017695:Soft Tissue Injuries / Q000209:etiology / Q000517:prevention & control; D053441:Suture Anchors; D016896:Treatment Outcome; D055815:Young Adult
chemical_list: D001672:Biocompatible Materials; D017886:Durapatite
keywords: Bone Conduction