Mersilene mesh versus sclera in wrapping hydroxyapatite orbital implants

Area of Science:

• Ophthalmology
• Biomaterials Science
• Surgical Innovation

Background:

• Hydroxyapatite implants are commonly used after orbital exenteration.
• Biocompatible wrapping materials are essential for successful implant integration and patient comfort.
• Comparing different wrapping materials like Mersilene mesh and sclera is crucial for optimizing outcomes.

Purpose of the Study:

• To compare the efficacy and safety of Mersilene mesh versus sclera as wrapping materials for hydroxyapatite orbital implants in primary enucleation procedures.
• To evaluate postoperative complications and implant stability associated with each wrapping material.

Main Methods:

• A prospective, randomized, comparative case series involving 60 patients undergoing primary enucleation.
• Patients were allocated to receive either Mersilene mesh-wrapped hydroxyapatite (MHA) or sclera-wrapped hydroxyapatite (SHA) implants.
• Socket examinations were conducted at regular intervals post-surgery (1 week, 1 month, and every 3 months).

Main Results:

• No significant difference in mean patient age or primary cause for enucleation (trauma) between MHA and SHA groups.
• MHA implants had a significantly longer mean follow-up duration (11.40 months) compared to SHA (9.40 months).
• No implant exposure was observed in the MHA group, while one SHA patient experienced minor exposure treated conservatively. No significant soft tissue complications occurred in either group.

Conclusions:

• Both Mersilene mesh and sclera are suitable and safe wrapping materials for hydroxyapatite orbital implants.
• Mersilene mesh presents advantages including no disease transmission, cost-effectiveness, and ready availability.
• The study supports the use of Mersilene mesh as a viable alternative for wrapping orbital implants.