
CLINICAL APPLICATION OF 3D PRE-BENT TITANIUM IMPLANTS FOR FRACTURES OF INFERIOR WALL OF THE ORBIT
Abstract
Traumatic injuries of the bones of the middle zone of the facial skeleton represent one of the most difficult problems of maxillofacial surgery. The percentage of traumatic injuries of the maxillofacial region worldwide remains at a constantly high level with no tendency to decrease. According to different authors from 6 to 23% in the structure of trauma by localization of injuries belongs to the middle zone of the face (Levchenko O.V., A.Z. Shalumov, 2011; Brasileiro B.F., Passeri L.A., 2006; O. Obuekwe, F. Owotade, O. Osaiyuwu, 2005). The unique anatomy of the orbit and the resulting surgical approaches make the process of fitting and aligning implants difficult, time consuming and operator dependent. It is now possible to make relatively in-expensive anatomical models on the basis of computed tomography images, using rapid prototyping. Such models can be as templates to form titanium implants, which are then used in the reconstruction of defects of the inferior wall of orbit. Material and methods: 32 patients with facial trauma were included in this study. First, 3D virtual models and then physical models were created. These were used as templates to shape the titanium mesh and then intraoperatively as guides to aid correct implant placement in the orbit. Results: Significant improvement resulted in thirty two cases and total recovery 32 cases. Conclusion: It is financially viable to build anatomical models, on the basis of CT studies, that can be used in the repair of orbital floor fractures.
Keywords
Orbital fractures, orbital implants, computer models
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