Deviated hydroxyapatite orbital implant syndrome.

Abstract

To describe a patient with a deviated orbital implant after enucleation. Case report. We examined a postenucleation patient with a medially deviated ("esotropic") implant after peg drilling. Modification of the posterior surface of the prosthesis improved cosmesis in the primary position. During enucleation surgery, surgeons may use a spherical implant rather than modify the anterior face in patients with preexisting strabismus, with severe trauma to the extraocular muscles, or with risk of implant deviation. Additionally, secondary procedures may alter implant position. Occasionally, patients without obvious preoperative risk factors may have deviation of the modified face of the implant. Flattening the implant creates an asymmetric surface that may lead to a deviated orbital implant.