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Enucleation and the hydroxyapatite orbital implant
Journal of Ophthalmic Nursing & Technology
|September 1, 1991
Summary
Hydroxyapatite implants integrate with orbital tissues, promoting natural eye movement and reducing extrusion risks. Surgeons prefer them for their biocompatibility, though they are not suitable for infected or poorly vascularized orbits.
Area of Science:
- Ophthalmology
- Biomaterials Science
- Tissue Engineering
Background:
- Hydroxyapatite is a natural, porous biomaterial.
- It facilitates vascular and fibrous tissue integration.
- This integration allows implants to become a living part of orbital tissues.
Purpose of the Study:
- To highlight the benefits of hydroxyapatite implants in oculoplastic surgery.
- To explain the reasons for their increasing use by surgeons.
- To define contraindications for hydroxyapatite sphere use.
Main Methods:
- Review of hydroxyapatite implant properties and clinical applications.
- Analysis of factors contributing to implant success.
- Identification of specific orbital conditions where hydroxyapatite is contraindicated.
Main Results:
- Hydroxyapatite implants promote natural eye movement.
- They offer resistance to extrusion and rare complications.
- Their porous nature allows tissue ingrowth, enhancing integration.
Conclusions:
- Hydroxyapatite implants are favored in oculoplastic surgery due to biocompatibility and functional benefits.
- Contraindications include severe trauma, infection, poor vascularization, and post-irradiation orbits.