Preprint Article Version 1 Preserved in Portico This version is not peer-reviewed

Delayed Orbital Floor Reconstruction Using a Mirroring Technique and patient-specific implants: a prospective clinical study.

Version 1 : Received: 24 July 2023 / Approved: 25 July 2023 / Online: 25 July 2023 (11:44:52 CEST)

How to cite: D'Alpaos, D.; Badiali, G.; Ceccariglia, F.; Tarsitano, A. Delayed Orbital Floor Reconstruction Using a Mirroring Technique and patient-specific implants: a prospective clinical study.. Preprints 2023, 2023071681. https://doi.org/10.20944/preprints202307.1681.v1 D'Alpaos, D.; Badiali, G.; Ceccariglia, F.; Tarsitano, A. Delayed Orbital Floor Reconstruction Using a Mirroring Technique and patient-specific implants: a prospective clinical study.. Preprints 2023, 2023071681. https://doi.org/10.20944/preprints202307.1681.v1

Abstract

Enophthalmos is a severe complication of primary reconstruction following orbital floor frac-tures, oncological resections or maxillo-facial syndromes. The goal of secondary reconstruction is to re-store symmetrical globe positions to recover function and aesthetics. In this article we pre-sent a method of computer-assisted orbital floor reconstruction using a mirroring technique and a customized titanium or high-density polyethylene mesh, printed using computer aided manufac-turing techniques. This reconstructive protocol involves 4 steps: mirroring of the healthy orbit at the affected site, vir-tual design of a patient specific orbital floor mesh, computer-assisted manufacturing (CAD) of the implant, and surgical insertion of the device. Using a computed tomography data set, the un-injured side of the craniofacial skeleton was reflected onto the contralateral injured side, and a reconstructive orbital floor prosthesis was virtually designed on the mirrored orbital bone sur-face. The solid-to-layer (.STL) files of the prosthesis were then manufactured using Direct Metal Laser Sintering (DMLS) or Computer Numerical Control (CNC) methods, leading to the produc-tion of 10 titanium meshes and 2 high density polyethylene (HDPE) implants. Clinical outcomes were assessed using 3dMD photogrammetry and computed tomography measures in 14 treated patients. The technique described here appears to be a viable method to correct complex orbital floor de-fects needing delayed reconstruction. This article represents the prosecution of a previous study, which is part of a wider experimental protocol for orbital floor reconstruction using comput-er-assisted design-computer-assisted manufacturing (CAD-CAM) technology

Keywords

orbital reconstruction, enophthalmos, CAD-CAM technique, titanium mesh, HDPE implant, personalized surgery.

Subject

Medicine and Pharmacology, Surgery

Comments (0)

We encourage comments and feedback from a broad range of readers. See criteria for comments and our Diversity statement.

Leave a public comment
Send a private comment to the author(s)
* All users must log in before leaving a comment
Views 0
Downloads 0
Comments 0
Metrics 0


×
Alerts
Notify me about updates to this article or when a peer-reviewed version is published.
We use cookies on our website to ensure you get the best experience.
Read more about our cookies here.