title: Evaluation of receiver-stimulator migration in cochlear implantation using the subperiosteal pocket technique: a prospective clinical study.
abstract: OBJECTIVE
  This study aimed to evaluate migration of the receiver-stimulator after cochlear implantation using the subperiosteal pocket technique.
  
  
  METHODS
  A prospective clinical study was performed of 32 paediatric patients (aged between 12 months and 8 years; mean ± standard deviation, 28 ± 19 months) who underwent cochlear implantation in tertiary referral centres. The degree of migration was evaluated using measurements between the receiver-stimulator and selected reference points: the lateral canthus, tragus and mastoid tip. All distances were measured during and six months after surgery.
  
  
  RESULTS
  No receiver-stimulator migration was observed when using the subperiosteal pocket technique.
  
  
  CONCLUSIONS
  Concerns about implant migration in the subperiosteal pocket technique are unwarranted: this is a safe technique to use for cochlear implantation.
authors.affiliation: Department of Otorhinolaryngology and Head and Neck Surgery,Istanbul Medical Faculty,University of Istanbul,Turkey.
authors.forename: Y
authors.initials: Y
authors.lastname: Güldiken
authors.affiliation: Department of Otorhinolaryngology and Head and Neck Surgery,Istanbul Medical Faculty,University of Istanbul,Turkey.
authors.forename: B
authors.initials: B
authors.lastname: Polat
authors.affiliation: Department of Otorhinolaryngology and Head and Neck Surgery,Istanbul Medical Faculty,University of Istanbul,Turkey.
authors.forename: N
authors.initials: N
authors.lastname: Enver
authors.affiliation: Otorhinolaryngology Department,Ministry of Health Agri State Hospital,Agri,Turkey.
authors.forename: L
authors.initials: L
authors.lastname: Aydemir
authors.affiliation: Department of Otorhinolaryngology and Head and Neck Surgery,Istanbul Medical Faculty,University of Istanbul,Turkey.
authors.forename: Ş
authors.initials: Ş
authors.lastname: Çomoğlu
authors.affiliation: Department of Otorhinolaryngology and Head and Neck Surgery,Istanbul Medical Faculty,University of Istanbul,Turkey.
authors.forename: K S
authors.initials: KS
authors.lastname: Orhan
mesh_terms: D002648:Child; D002675:Child, Preschool; D019929:Cochlear Implantation / Q000009:adverse effects* / Q000379:methods; D003054:Cochlear Implants / Q000009:adverse effects*; D005260:Female; D005548:Foreign-Body Migration / Q000175:diagnosis* / Q000209:etiology* / Q000473:pathology; D006257:Head / Q000473:pathology; D006801:Humans; D007223:Infant; D007765:Lacrimal Apparatus / Q000473:pathology; D008297:Male; D008416:Mastoid / Q000473:pathology; D009929:Organ Size; D011183:Postoperative Complications / Q000175:diagnosis / Q000209:etiology* / Q000473:pathology; D011446:Prospective Studies
keywords: Cochlear Implantation; Hearing Loss; Postoperative Complications