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Ossicular chain reconstruction using titanium versus hydroxyapatite implants.

Yuri M Gelfand1, C Y Joseph Chang

  • 1Department of Otorhinolaryngology, University of Texas at Houston Medical School, Houston, Texas 77030, USA. yuri.m.gelfand@uth.tmc.edu

Otolaryngology--Head and Neck Surgery : Official Journal of American Academy of Otolaryngology-Head and Neck Surgery
|April 16, 2011
PubMed
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Hydroxyapatite (HA) and titanium (Ti) implants show similar efficacy for ossicular reconstruction, whether partial or total. Further randomized studies are needed for definitive comparisons of these ossicular chain reconstruction (OCR) implants.

Area of Science:

  • Otolaryngology
  • Biomaterials Science
  • Surgical Innovation

Background:

  • Ossicular chain reconstruction (OCR) is crucial for restoring hearing after middle ear damage.
  • Hydroxyapatite (HA) and titanium (Ti) are commonly used biomaterials for ossicular prostheses.
  • Comparing the long-term efficacy of HA versus Ti implants is essential for surgical decision-making.

Purpose of the Study:

  • To compare the hearing outcomes of ossiculoplasty using hydroxyapatite (HA) versus titanium (Ti) implants.
  • To evaluate the efficacy of both partial ossicular reconstruction prosthesis (PORP) and total ossicular reconstruction prosthesis (TORP) designs.
  • To assess the influence of surgical approach (canal wall up vs. canal wall down) on hearing results.

Main Methods:

  • Retrospective case series of 404 patients undergoing ossiculoplasty with HA or Ti implants.

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  • Data collected from June 1996 to September 2008.
  • Analysis of air-bone gap changes and confounding factors including cholesteatoma presence.

    • Main Results:

    • No statistically significant difference in hearing outcomes (change in air-bone gap) between HA and Ti implants for both PORP and TORP.
    • No significant difference in hearing results between canal wall up (CWU) and canal wall down (CWD) mastoidectomy approaches.
    • Cholesteatoma presence negatively impacted hearing results in the titanium partial ossicular reconstruction prosthesis (Ti PORP) group.

    Conclusions:

    • Both HA and Ti implants demonstrate comparable efficacy in ossicular chain reconstruction.
    • Surgical approach (CWU vs. CWD) does not significantly affect hearing outcomes with either implant type.
    • Further randomized, prospective studies are recommended for a definitive comparison of HA and Ti ossicular chain reconstruction implants.