Bioresorbable Material in Secondary Orbital Reconstruction Surgery

Area of Science:

• Ophthalmology
• Plastic and Reconstructive Surgery
• Biomaterials Science

Background:

• Inadequate primary orbital fracture repair can lead to complications like enophthalmos and diplopia.
• Previous orbital reconstructions utilized various implant materials with mixed success.
• Secondary revision surgery is necessary to address functional and aesthetic deficits from failed primary repairs.

Purpose of the Study:

• To evaluate the efficacy of bioresorbable materials in secondary orbital reconstruction for orbital fractures.
• To assess clinical and computed tomography findings before and after revision surgery.
• To determine the safety and functional outcomes of bioresorbable implants in revisional surgery.

Main Methods:

• Retrospective review of 16 patients undergoing secondary orbital fracture repair with bioresorbable material.
• Analysis of pre- and postoperative enophthalmos, ocular motility, and diplopia.
• Review of primary implant types, surgical complications, and patient demographics.

Main Results:

• Primary implants included Medpor, titanium mesh, hydroxyapatite, or poly-L-lactide, with common issues being malposition and infection.
• Secondary reconstruction significantly reduced enophthalmos (mean reduction of 3.1 mm, P < 0.01).
• Improved ocular motility and diplopia were observed in most patients, with resolution of abscesses and pain.

Conclusions:

• Bioresorbable materials are effective for secondary orbital reconstruction after inadequate primary repair.
• This approach yields excellent functional and aesthetic results with a low complication rate.
• Consideration of bioresorbable materials is recommended for indicated secondary orbital reconstructions.