title: A prospective evaluation of the Essen titanium stapes prosthesis.
abstract: OBJECTIVE
  This is the first clinical trial to evaluate the suitability of a new titanium stapes prosthesis, which we developed jointly with the Kurz Company (Dusslingen).
  
  
  METHODS
  In a prospective clinical study, patients with otosclerosis underwent stapes surgery using our new titanium stapes prosthesis during a period of 14 months. One year after surgery pre- and postoperative audiograms were performed and all patients participated in a structured interview.
  
  
  METHODS
  Tertiary otorhinolaryngological university department
  
  
  METHODS
  Of 49 patients with otosclerosis, entering the study, two patients were excluded, because they were not located any more.
  
  
  RESULTS
  All patients experienced a hearing improvement of 21 dB on average except one patient. Sixty percentage of patients achieved a reduction of the air-bone gap to less than 10 dB and 31% of patients having their air-bone gap closed to within 20 dB--averaged across 0.5, 1.0, 2.0 and 4 kHz. The hearing level improved significantly in the air and in the bone conduction thresholds.
  
  
  CONCLUSIONS
  This paper presents our first '1 year postimplantation' results of our titanium stapes prosthesis. We consider the development of this implant to be beneficial. The results confirm significant improvement in hearing status and tinnitus levels.
authors.affiliation: Department of Oto-Rhino-Laryngology, University of Duisburg-Essen, Essen, Germany. dost@st-augustinus.de
authors.forename: P
authors.initials: P
authors.lastname: Dost
authors.forename: D
authors.initials: D
authors.lastname: Arweiler-Harbeck
authors.forename: K
authors.initials: K
authors.lastname: Jahnke
mesh_terms: D000328:Adult; D000368:Aged; D001301:Audiometry, Pure-Tone; D001309:Auditory Threshold / Q000502:physiology; D005260:Female; D006314:Hearing Loss, Conductive / Q000175:diagnosis / Q000209:etiology; D006801:Humans; D008297:Male; D008875:Middle Aged; D019933:Ossicular Replacement / Q000295:instrumentation; D010040:Otosclerosis / Q000150:complications / Q000503:physiopathology / Q000601:surgery*; D011182:Postoperative Care; D011300:Preoperative Care; D011446:Prospective Studies; D011474:Prosthesis Design; D012720:Severity of Illness Index; D013201:Stapes Surgery; D011795:Surveys and Questionnaires; D014025:Titanium
chemical_list: D014025:Titanium