Use of CAD-based pre-bent implants reduces theatre time in orbital floor reconstruction: results of a prospective study
| Autor: | M.G. Schwertner, Werner Adler, Emeka Nkenke, T. Ebker, C. von Wilmowsky, Tobias Moest |
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| Rok vydání: | 2020 |
| Předmět: |
genetic structures
Bent molecular geometry CAD Computed tomography Orbital floor fracture 03 medical and health sciences 0302 clinical medicine Humans Medicine Prospective Studies 030223 otorhinolaryngology Orbital Fractures Dental Implants Titanium medicine.diagnostic_test business.industry 030206 dentistry Plastic Surgery Procedures Surgical Mesh eye diseases medicine.anatomical_structure Otorhinolaryngology Computer-Aided Design Surgery sense organs Oral Surgery business Nuclear medicine Orbit Orbit (anatomy) |
| Zdroj: | British Journal of Oral and Maxillofacial Surgery. 58:753-758 |
| ISSN: | 0266-4356 |
| Popis: | In this prospective study we evaluated the duration of insertion and the accuracy of fitting of computer-aided design (CAD)-based pre-bent orbital floor plates compared with non-preformed orbital plates in reconstruction of the orbital floor. Thirty-six patients with unilateral fractures of the orbital floor were included; pre-bent plates were used in 25 and non-preformed plates in 11. Preoperative computed tomography (CT) scans were used for CAD of individualised implants. The anatomy of the affected orbit was virtually reconstructed “slice by slice”. Individually pre-bent plates were generated using a stereolithographic model of the reconstructed orbit. The mean (SD) duration of insertion was significantly reduced when pre-bent orbital plates were used (5.5 (5.4) min) compared with non-preformed meshes (11.1 (7.7) min). The congruence of pre-bent plates to the infraorbital rim did not differ from that of non-preformed plates. The accuracy of fit was rated as “accurate” in 24 cases. CAD-based individualised titanium meshes reduce theatre time compared with non-preformed orbital plates. Our results confirm the efficacy of CAD-based pre-bent plates in reconstruction of the orbital floor. |
| Databáze: | OpenAIRE |
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