Abstract

Orbital implants used in repairing the blowout fracture must have some physical properties to restore the contour and dimensions of the orbit, and to provide some indirect support for the glove. Also, they should provide a physiologically accepttable and physically inert smooth surface which will not form adhesions. Oculoplastic surgerns have been used many materials for the reconstruction of the orbital floor including alloplastic implants, autogenous bone and autogenous cartilage, but any of them was not choosen as the most proper implant in repairing the blowout frature owing to various disadvantages. Authors have used outer-table calvarial bone segments preserving the periosteum in the reconstruction of blowout fracture. We have implanted this material in 13 patients for last 2 years. Satisfactory functional and cosmetic results were achieved in 12 patients without noticeable complications. One patient showed slight undercorrection of the preoperative enopthalmos, but the patient satisfied after second operation for the reimplantion of another outer-table calvarial bone segment. No patient complained remnant diplopia or other major complications including infection and displacement of implant. Authors believe that the outer-tabe calvarial bone segment is the ideal implant for use in repairing the blowout fracture. In this paper we would like to present the operative technique, the advantages of the implant and related bibliographical review .