Comparative motility of hydroxyapatite and alloplastic enucleation implants1
Presented at the American Society of Ophthalmic Plastic and Reconstructive Surgery, 25th Annual Scientific Symposium, San Francisco, California, October 1994.
Received 20 July 1995; accepted 24 September 1998.
Abstract
Objective
To compare the motility of scleral-covered hydroxyapatite and alloplastic enucleation implants.
Design
Retrospective, nonrandomized comparative trial.
Participants
Measurements were obtained after surgery in 76 anophthalmic patients who had received either hydroxyapatite or alloplastic enucleation implants.
Methods/main outcome measures
Horizontal and vertical excursions of the enucleation implants.
Results
There is no clinically important difference between the movement of hydroxyapatite and alloplastic enucleation implants. Implant movement appears to decline with advancing age.
Conclusion
Scleral-covered alloplastic and hydroxyapatite enucleation implants show similar movement. Although directly coupling hydroxyapatite implants to the prosthesis via the motility peg provides enhanced prosthetic movement, there appears to be no motility benefit of nonpegged hydroxyapatite over spherical alloplastic implants.
Manuscript no. 95396.
1Washington University Department of Ophthalmology and Visual Sciences, St. Louis, Missouri, USA
2Washington University Division of Biostatistics, St. Louis, Missouri, USA
3Illinois Department of Public Health, Springfield, Illinois, USA
Address correspondence to Philip L. Custer, MD, Suite 17305, Barnes Hospital, St. Louis, MO 63110 USA
1 The authors have no proprietary interest in the development or marketing of these implants.
ABSTRACT