EXTRUSION RATE OF SILICONE SPHERICAL ANOPHTHALMIC SOCKET IMPLANTS

The most popular technique of placement of an anophthalmic spherical i mplant was first described by Frost and Lange in 1886, and has remaine d essentially unchanged since that time. That technique incorporates i mbrication of recti muscles over an 18 mm spherical implant, and purse stringing of conjunctiva and Tenon's fascia in a single layered closu re. The Frost-Lange technique has led to previously reported extrusion rates as high as 11.3%. The technique is also associated with superot emporal implant migration and poor prosthetic motility. Our technique modification includes suturing recti muscles independently to a 20 mm spherical implant reinforced with autogenous fascia or preserved scler a. We then close Tenon's fascia and conjunctiva independently as separ ate layers. The extrusion rate for our patients during a 10 year study period was 0.84% (1 of 119). We found no implant migration, no painfu l socket, and prosthetic motility was good. We recommend our technique modification to replace the traditional Frost-Lange technique.