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.
Keywords
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Article info
Publication history
Published online: July 01, 2020
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© 2019 The British Association of Oral and Maxillofacial Surgeons. Published by Elsevier Ltd. All rights reserved.
