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A new titanium peg system for hydroxyapatite orbital implants.

D R Jordan1, S R Klapper

  • 1University of Ottawa Eye Institute, Ontario, Canada.

Ophthalmic Plastic and Reconstructive Surgery
|October 6, 2000
PubMed
Summary
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A new hydroxyapatite-coated titanium peg system for orbital implants shows promise. While complications exist, issues like discharge and pyogenic granulomas appear less frequent than with older systems.

Area of Science:

  • Ophthalmology
  • Biomaterials Science
  • Surgical Technology

Background:

  • Orbital implants are crucial for restoring function and aesthetics after enucleation.
  • Traditional peg systems have known complication profiles.
  • Hydroxyapatite (HA)-coated implants offer potential for improved osseointegration and biocompatibility.

Purpose of the Study:

  • To evaluate the safety and efficacy of a novel hydroxyapatite-coated titanium sleeve and titanium peg system for orbital implants.
  • To analyze the complication rates associated with this new HA-coated titanium peg system.

Main Methods:

  • A prospective study followed 57 patients who received the HA-coated titanium sleeve and peg system.
  • Data collected included surgical details, implant size, HA type, pegging time, follow-up duration, and encountered complications.

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  • Complications were systematically recorded and analyzed over an average follow-up of 15 months.

    • Main Results:

    • The HA-coated titanium system was implanted in 57 patients with a mean follow-up of 15 months.
    • Common complications included discharge (9.2%), pyogenic granulomas (14.8%), and peg extrusion (9.2%).
    • Less frequent complications involved movement transfer issues, clicking, conjunctival overgrowth, and visible components.

    Conclusions:

    • The HA-coated titanium sleeve and titanium peg system is a viable option for HA orbital implants.
    • Complication rates for discharge and pyogenic granulomas may be lower compared to traditional polycarbonate pegs.
    • The new system was generally well-tolerated, with reports of quieter socket function.