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Related Experiment Videos

Hydroxylapatite ossicular replacement prostheses: a four-year experience.

R A Goldenberg

    Otolaryngology--Head and Neck Surgery : Official Journal of American Academy of Otolaryngology-Head and Neck Surgery
    |March 1, 1992
    PubMed
    Summary
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    Hybrid hydroxylapatite middle ear implants offer comparable hearing reconstruction success rates to traditional methods. These implants, combining hydroxylapatite and Plasti-Pore, demonstrate low extrusion rates and effective hearing outcomes in patients.

    Area of Science:

    • Otolaryngology
    • Biomaterials Science
    • Regenerative Medicine

    Background:

    • Middle ear implants are crucial for hearing reconstruction.
    • Early hydroxylapatite implants faced intraoperative challenges.
    • Development of hybrid prostheses aimed to improve surgical handling and outcomes.

    Purpose of the Study:

    • To evaluate the efficacy and outcomes of hybrid hydroxylapatite middle ear implants.
    • To compare hearing results between hybrid, total hydroxylapatite, and control prostheses.
    • To describe the surgical technique for utilizing hybrid hydroxylapatite prostheses.

    Main Methods:

    • Utilized 215 hydroxylapatite and hybrid prostheses (1987-1991).
    • Compared hearing results across three groups: hybrid hydroxylapatite (47 patients), total hydroxylapatite (140 patients), and controls (75 patients).

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  • Prostheses included incus, incus-stapes, partial ossicular replacement prosthesis (PORP), and total ossicular replacement prosthesis (TORP) designs.

    • Main Results:

    • Successful hearing results were achieved in 51.1% (hybrid), 51.4% (total HA), and 60.0% (control) of patients.
    • Hybrid prostheses exhibited a low extrusion rate of 4.3%.
    • Surgical technique for hybrid prostheses was detailed.

    Conclusions:

    • Hybrid hydroxylapatite middle ear implants provide effective hearing reconstruction.
    • These implants offer comparable success rates to total hydroxylapatite and control prostheses.
    • The hybrid design addresses previous surgical handling difficulties while maintaining good audiological outcomes.