PURPOSE We present a case of orbital abscess following porous orbital implant infection in a 73-year-old woman with rheumatoid arthritis. METHODS Just one month after a seemingly uncomplicated enucleation and porous polyethylene (Medpor) orbital implant surgery, implant exposure developed with profuse pus discharge. The patient was unresponsive to implant removal and MRI confirmed the presenc...

Silicone was one of the most common biocompatible materials used for orbital floor reconstruction about twenty to thirty years ago. Recently, surgeons hardly use silicone due to numerous reports of complications such as infection, extrusion and implant displacement. We present a case of chronic infection seen after 28 years of silicone implant used in orbital floor repair. Although it is report...

To our knowledge, there is no report of dermis-fat graft (DFG) implant for orbital reconstruction from Oman. We hereby presented a case report of a 10-year-old boy with a blind and painful left eye secondary to penetrating eye injury presented with implant extrusion following evisceration with a polymethyl methacrylate implant. The evisceration procedure was converted to enucleation and a DFG o...

PURPOSE A mathematical simulation of stress distribution around orbital implants was used to determine which length and diameter of implants would be best to dissipate stress. METHODS An integrated system for computed tomography data was utilized to create a 3-dimensional model of craniofacial structures. The model simulated implants placed in the 7, 11, and 12 o'clock positions of the orbita...

PURPOSE To investigate the long term survival of orbital fat grafted on a Medpor implant as a method of preventing porous polyethylene orbital implant (Medpor) exposure in anophthalmic sockets. METHODS In one orbit in each of 8 rabbits, a small amount of retrobulbar orbital fat was grafted between the anterior surface of the Medpor implant and overlying conjunctiva, during the enucleation and...

PURPOSES The study is to describe a new surgical technique for correcting large orbital implant exposure with extraocular muscle flaps and to propose a treatment algorithm for orbital implant exposure. METHODS In a retrospective study, seven patients with orbital implant exposure were treated with extraocular muscle flaps. All data were collected from patients in Chang Gung Memorial Hospital,...

The coral derived hydroxyapatite sphere is a popular, integrated orbital implant designed to provide improved motility of the ocular prosthesis following enucleation. Although the implant has rapidly become widely used by ophthalmologists, little information is available regarding the problems of this technique in a large series of cases. Experience with 250 consecutive cases of hydroxyapatite ...

A 30 year old female with absolute glaucoma status post-evisceration developed recurrent orbital implant exposure and scleral melting. We successfully treated the large conjunctiva defect by utilizing secondary implant of dermis fat graft for tissue growth and tension-free conjunctiva closure. The patient was satisfied with the postoperative outcome, and no major complications were observed in ...

Implant-supported craniofacial prostheses are made to restore defective areas in the face and cranium. This clinical report describes a technique for fabrication of an orbital prosthesis with three adjacent implants in the left lateral orbital rim of a 60-year-old woman. Selection of appropriate attachment system (individual magnetic abutments versus bar-clip attachment) for implant-supported o...