RESUMEN
Treatment of facial trauma sequelae is a complex and challenging process. There is still controversy over suitable materials for orbital wall reconstruction. This study evaluated calcium phosphate cement (CPC) implants manufactured by rapid prototyping in the repair of orbital wall defects secondary to trauma. Computed tomographic scans of 5 patients were used for surgery planning and production of CPC implants. Implants were used to restore orbital wall anatomy, ocular alignment, and facial contour. Benefits resulting from the use of implants, such as a reduced operating time, patient response to biomaterial implantation, biomaterial integrity and stability, and patient satisfaction with treatment, were analyzed qualitatively. Our results suggest that CPC is an effective and safe material for orbital reconstruction because of its biocompatibility and easy production and placement.
Asunto(s)
Materiales Biocompatibles/uso terapéutico , Sustitutos de Huesos/uso terapéutico , Fosfatos de Calcio/uso terapéutico , Órbita/cirugía , Fracturas Orbitales/cirugía , Procedimientos de Cirugía Plástica/métodos , Prótesis e Implantes , Adulto , Materiales Biocompatibles/química , Sustitutos de Huesos/química , Fosfatos de Calcio/química , Sulfato de Calcio/química , Diseño Asistido por Computadora , Diplopía/cirugía , Enoftalmia/cirugía , Femenino , Humanos , Procesamiento de Imagen Asistido por Computador , Masculino , Persona de Mediana Edad , Trastornos de la Motilidad Ocular/cirugía , Enfermedades Orbitales/cirugía , Planificación de Atención al Paciente , Seguridad del Paciente , Satisfacción del Paciente , Fosfatos/química , Estudios Prospectivos , Diseño de Prótesis , Factores de Tiempo , Tomografía Computarizada Espiral , Resultado del TratamientoRESUMEN
BACKGROUND: A variety of autogenous and alloplastic materials have been used as subperiosteal implants to correct anophthalmic enophthalmos. Proplast II is a synthetic porous composite of Teflon polymer and alumina. Proplast II offers a number of advantages over other commonly used alloplastic materials such as silicone and polymethyl methacrylate. It is light, porous, resilient, malleable, and easy to shape. It can be readily sterilised after shaping. It has been found to integrate with the surrounding tissues, thereby minimising the risk of subsequent implant migration and extrusion. METHODS: Proplast II was used as a subperiosteal implant in a total of 15 anophthalmic patients during the period June 1990 to March 1994. The indication for this procedure in all patients was poor orbital volume replacement despite the prior insertion of an adequately sized spherical socket implant. RESULTS: The results were excellent with a good correction of preoperative upper eyelid sulcus deformity. There were no operative complications nor any serious postoperative complications. The implants were well tolerated. CONCLUSION: Proplast II can be highly recommended for use as a subperiosteal implant.