Oculoplastic and orbital applications of porous high-density polyethylene implants.

Porous high-density polyethylene implants have become well accepted for the repair of orbital wall fractures, delayed orbital reconstruction, orbital rim and malar bony onlay augmentation, and volume replacement as orbital spherical implants for the treatment of anophthalmos. Medpor (Porex Surgical, Inc. College Park, GA) is a commercially available porous high-density polyethylene product available in sheets, blocks, Flexblocks, several onlay contour shapes, spheres, and custom implants. Recently, the motility coupling post was introduced to provide an integrated Medpor spherical implant with enhanced prosthetic motility. Medpor implants possess several advantages over hydroxyapatite implants.