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Veit, Johannes A.; Thierauf, Julia; Egner, Kornelius; Wiggenhauser, Paul S.; Friedrich, Daniel; Greve, Jens; Schuler, Patrick J.; Hoffmann, Thomas K.; Schramm, Alexander (2017): Virtuelle Planung bei der epithetischen Orbitaversorgung. In: Laryngo-Rhino-Otologie, Vol. 96, No. 6: pp. 374-379
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Abstract

Background Optimal positioning of bone-anchored implants in the treatment of patients with orbital prosthesis is challenging. The definition of implant axis as well as the positioning of the implants is important to prevent failures in prosthetic rehabilitation in these patients. Material and Methods We performed virtual planning of enossal implants at a base of a standard fan beam CT scan using the software CoDiagnostiX (TM) (DentalWings, Montreal, Canada). By 3D-printing a surgical guide for drilling and implant insertion was manufactured (Med-610 (TM), Stratasys, Rehovot, Israel). Results An orbital exenteration was performed in a patient after shrinkage of the eyelids 20 years after enucleation and radiation of the orbit due to rhabdomyosarcoma. 4 Vistafix-3 implants (Cochlear (TM), Cochlea, Centennial, USA) were-primarily inserted after resection with the help of the 3D-surgical guide. Prosthetic rehabilitation could be achieved as preplanned to a predictable result. The individual prosthesis of the orbit showed good functional and esthetic outcome. Conclusions The virtual 3D-planning of endosseous implants for prosthetic orbital and periorbital reconstruction is easy to use and facilitates optimal placement of implants especially in posttherapeutically altered anatomic situations.