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TORP vs round window implant for hearing restoration of patients with extensive ossicular chain defect.

AbstractCONCLUSIONS:
Round window implant (RWI) with a floating mass transducer (FMT) may be suggested as the first choice in hearing rehabilitation for patients with chronic otitis media (COM) and extensive destruction of the ossicular chain.
OBJECTIVE:
To investigate the pros and cons of the total ossicular replacement prosthesis (TORP) vs the RWI in restoration of hearing in patients with COM.
PATIENTS AND METHODS:
Thirty-eight patients with bilateral moderate to severe mixed or conductive hearing loss from COM without cholesteatoma and bilateral ossicular chain erosion (footplate residual) were alternately assigned to a titanium-TORP (T-TORP) and to RWI with the FMT of the Medel Vibrant Soundbridge (MVBS) located onto the RW niche. The therapeutic efficiency, preoperative vs postoperative air-conduction gain and speech recognition were investigated for the two groups and statistically analyzed at 36 months postoperatively. The following postoperative anatomic conditions were also evaluated for the two groups: 1) recurrence of infection, 2) retraction pocket, 3) extrusion rate, and 4) displacement of the prosthesis.
RESULTS:
Good functional results and stability at 36 months were obtained with both procedures. The extrusion rates for T-TORP were low. So far no extrusion has been observed for RWI. Hearing results were statistically much better for RWI vs T-TORP for all investigated parameters.
AuthorsVittorio Colletti, Marco Carner, Liliana Colletti
JournalActa oto-laryngologica (Acta Otolaryngol) Vol. 129 Issue 4 Pg. 449-52 (Apr 2009) ISSN: 1651-2251 [Electronic] England
PMID19191049 (Publication Type: Comparative Study, Journal Article)
Chemical References
  • Biocompatible Materials
  • Titanium
Topics
  • Adolescent
  • Adult
  • Aged
  • Audiometry, Speech
  • Biocompatible Materials (therapeutic use)
  • Female
  • Hearing Loss, Conductive (surgery)
  • Humans
  • Male
  • Middle Aged
  • Ossicular Prosthesis
  • Otitis Media (surgery)
  • Recovery of Function
  • Reoperation
  • Round Window, Ear
  • Titanium (therapeutic use)
  • Young Adult

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