Integrated Orbital Implants—A Comparison of Hydroxyapatite and Porous Polyethylene Implants

  title={Integrated Orbital Implants—A Comparison of Hydroxyapatite and Porous Polyethylene Implants},
  author={S. Ahmed Sadiq and L S Mengher and John Lowry and Richard N. Downes},
  pages={37 - 40}
Purpose: A retrospective case note review was undertaken to elucidate any differences in the cosmetic results and rate of serious complications between hydroxyapatite (HA) and porous polyethylene (PP) orbital implants. Methods: Patients who had undergone orbital implant surgery during the period 1993 to 1997 by a single surgeon were identified. Twenty-six patients had an HA implant and twenty-six had received a PP implant. All patients were reviewed in the ocular prosthetics department in a… 

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Porous orbital implants and their behaviour during drilling.

The results confirm that the drilling of porous polyethylene using this technique is unlikely to be successful, as loss of the porous structure would prevent stable epithelialisation of the drill hole, resulting in exposure of the implant.

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Summary Enucleation is a commonly performed procedure. A multitude of intraorbital implants are available for use following enucleation. Each has advantages and disadvantages. This survey report

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In managing the anophthalmic socket, ASOPRS survey respondents preferred to use the porous polyethylene implant after primary enucleation and evisceration, and most surgeons preferred not to place a motility post or peg in the implant.

Different fibrovascularization rate between coralline hydroxyapatite and high density porous polyethylene (Medpore) measured by 99mTc-MDP bone scintigraphy 6 months after intraorbital implantation

Comparing the fibrovascular ingrowth rates of orbital implants between coralline hydroxyapatite and high density porous polyethylene (Medpore) showed that groups with corallines appearing to achieve complete fibrov vascularization at a much more rapid rate than those with Medpore.

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