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Long-term results with hydroxylapatite middle ear implants.

R A Goldenberg1, M Driver

  • 1Department of Otolaryngology, Wright State University School of Medicine, Dayton, Ohio, USA.

Otolaryngology--Head and Neck Surgery : Official Journal of American Academy of Otolaryngology-Head and Neck Surgery
|May 4, 2000
PubMed
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Goldenberg hydroxylapatite implants for ossicular reconstruction show stable long-term hearing results. This study found a 56.8% hearing success rate with low extrusion and dry ear outcomes in patients.

Area of Science:

  • Otolaryngology
  • Biomaterials Science
  • Surgical Outcomes Research

Background:

  • Ossicular reconstruction is crucial for hearing restoration in middle ear pathologies.
  • Hydroxylapatite implants offer a biocompatible option for replacing damaged ossicles.

Purpose of the Study:

  • To evaluate the long-term hearing outcomes and implant stability of Goldenberg hydroxylapatite prostheses used in ossicular reconstruction.
  • To assess the rates of extrusion and postoperative otorrhea associated with these implants.

Main Methods:

  • A cohort of 233 patients undergoing ossicular reconstruction with Goldenberg hydroxylapatite implants was analyzed.
  • Long-term hearing results were specifically evaluated in 77 patients with a minimum 5-year follow-up.
  • Extrusion rates and postoperative otorrhea were assessed across all 233 patients.

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Main Results:

  • The long-term hearing success rate was 56.8%, with a mean air-bone gap of 21.1 dB.
  • Prosthesis extrusion occurred in 5.29% of patients, and visible slippage in 7.7%.
  • Successful hearing outcomes (no extrusion, dry ear) were achieved by 50.6% of patients, with pre-operative hearing and malleus long process presence being positive predictors.

Conclusions:

  • Goldenberg hydroxylapatite hybrid prostheses demonstrate stable long-term hearing results.
  • These implants are associated with low extrusion rates and a low incidence of postoperative otorrhea, contributing to favorable overall outcomes.