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Hydroxylapatite ossicular replacement prostheses: preliminary results.

R A Goldenberg1

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

The Laryngoscope
|July 1, 1990
PubMed
Summary
This summary is machine-generated.

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Hydroxylapatite prostheses show no extrusion and offer a viable alternative for hearing reconstruction. While overall success rates are comparable to other materials, specific prosthesis types yield varied hearing results.

Area of Science:

  • Otolaryngology
  • Biomaterials Science
  • Hearing Reconstruction

Background:

  • Middle ear prostheses are crucial for hearing reconstruction.
  • Traditional prostheses include homograft bone and Plasti-Pore, each with potential drawbacks.
  • Hydroxylapatite prostheses offer a synthetic alternative, avoiding issues associated with human tissue.

Purpose of the Study:

  • To evaluate hearing outcomes and extrusion rates of hydroxylapatite prostheses.
  • To compare hydroxylapatite prostheses with homograft bone and Plasti-Pore prostheses.
  • To identify specific prosthesis types where hydroxylapatite performs well or requires modification.

Main Methods:

  • Retrospective analysis of 89 patients receiving hydroxylapatite prostheses.
  • Comparison with a control group of 75 patients using homograft bone or Plasti-Pore.

Related Experiment Videos

  • Assessment of hearing success based on postoperative air-bone gap measurements at 3 months.

    • Main Results:

    • No extrusions observed with hydroxylapatite prostheses at 3-month follow-up.
    • Overall success rate: 51.2% for hydroxylapatite vs. 60% for control group.
    • Hydroxylapatite showed comparable results for incus, incus-stapes, and total ossicular replacement prostheses, but poorer results for partial ossicular replacement prostheses.

    Conclusions:

    • Hydroxylapatite middle ear prostheses are a safe alternative, with no extrusion issues.
    • Hearing results vary by prosthesis type; modifications may improve partial ossicular replacement prosthesis outcomes.
    • Hydroxylapatite prostheses avoid the disadvantages of using human tissue in hearing reconstruction.