Virtuelle Planung bei der epithetischen Orbitaversorgung

Abstract

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. We performed virtual planning of enossal implants at a base of a standard fan beam CT scan using the software CoDiagnostiX™ (DentalWings, Montréal, Canada). By 3D-printing a surgical guide for drilling and implant insertion was manufactured (Med-610™, Stratasys, Rehovot, Israel). 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™, 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. 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.

Radiological Society of North America (RSNA) 3D printing Special Interest Group (SIG): guidelines for medical 3D printing and appropriateness for clinical scenarios

“…Secondary reconstruction of complex post-traumatic deformity may also require patient-matched implants. ICD-10: S02.6 Fracture of Mandible (body), S02.61 Fracture of Condylar Process of Mandible, S02.62 Fracture of Subcondylar Process of Mandible, S02.63 Fracture of Coronoid Process of Mandible, S02.64 Fracture of Ramus of Mandible, S02.65 Fracture of Angle of Mandible, S02.66 Fracture of Symphysis of Mandible PubMed Search: ((3D Printing) AND (Mandible Fracture)) OR ((Rapid Prototyping) AND (Mandible Fracture)) Results: [ 32 , 35 – 37 , 44 – 69 ] Congenital Malformations of Skull & Facial Bones : Syndromal or non-syndromal cases characterized mainly by anomalies which may vary from mild to severe and may present with asymmetric involvement of the skull and facial bones. In simple craniosynostosis one or more sutures may be involved.…”