Use of CAD-based pre-bent implants reduces theatre time in orbital floor reconstruction: results of a prospective study. Issue 7 (September 2020)

• Record Type: Journal Article
• Authors: von Wilmowsky, C.; Schwertner, M.G.; Nkenke, E.; Moest, T.; Adler, W.; Ebker, T.
• Is Part Of: British journal of oral and maxillofacial surgery. Volume 58:Issue 7(2020)
• Page Start: 753
• Page End: 758
• Publication Date: 2020-09
• Subjects: intraoperative time comparison -- individually pre-bent titanium mesh -- computer-aided design -- orbital floor fracture -- orbital floor reconstruction; Mouth -- Surgery -- Periodicals; Maxilla -- Surgery -- Periodicals; Face -- Surgery -- Periodicals; Surgery, Plastic -- Periodicals; Dentistry, Operative -- Periodicals; Face -- surgery -- Periodicals; Mouth -- surgery -- Periodicals; Maxilla -- surgery -- Periodicals; Surgery, Oral -- Periodicals; Oral Surgical Procedures -- Periodicals; Dentistry, Operative -- Periodicals; Bouche -- Chirurgie -- Périodiques; Maxillaire supérieur -- Chirurgie -- Périodiques; Face -- Chirurgie -- Périodiques; Chirurgie dentaire -- Périodiques; Dentistry, Operative; Face -- Surgery; Maxilla -- Surgery; Mouth -- Surgery; Surgery, Plastic; Electronic journals; Periodicals; 617.52059
• DOI: 10.1016/j.bjoms.2019.11.020
• Languages: English
• ISSNs: 0266-4356

Abstract

Abstract: 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.