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Tytuł:
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Comparison of augmented reality and cutting guide technology in assisted harvesting of iliac crest grafts - A cadaver study.
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Autorzy:
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Modabber A; Department of Oral and Maxillofacial Surgery, RWTH Aachen University Hospital, Pauwelsstraße 30, D-52074 Aachen, Germany. Electronic address: .
Ayoub N; Department of Oral and Maxillofacial Surgery, RWTH Aachen University Hospital, Pauwelsstraße 30, D-52074 Aachen, Germany.
Redick T; Institute of Automatic Control, RWTH Aachen University, Campus Boulevard 30, D-52074 Aachen, Germany.
Gesenhues J; Institute of Automatic Control, RWTH Aachen University, Campus Boulevard 30, D-52074 Aachen, Germany.
Kniha K; Department of Oral and Maxillofacial Surgery, RWTH Aachen University Hospital, Pauwelsstraße 30, D-52074 Aachen, Germany.
Möhlhenrich SC; Department of Orthodontics, University of Witten/Herdecke, Alfred-Herrhausen Straße 45, D, 58455 Witten, Germany.
Raith S; Department of Oral and Maxillofacial Surgery, RWTH Aachen University Hospital, Pauwelsstraße 30, D-52074 Aachen, Germany.
Abel D; Institute of Automatic Control, RWTH Aachen University, Campus Boulevard 30, D-52074 Aachen, Germany.
Hölzle F; Department of Oral and Maxillofacial Surgery, RWTH Aachen University Hospital, Pauwelsstraße 30, D-52074 Aachen, Germany.
Winnand P; Department of Oral and Maxillofacial Surgery, RWTH Aachen University Hospital, Pauwelsstraße 30, D-52074 Aachen, Germany.
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Źródło:
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Annals of anatomy = Anatomischer Anzeiger : official organ of the Anatomische Gesellschaft [Ann Anat] 2022 Jan; Vol. 239, pp. 151834. Date of Electronic Publication: 2021 Sep 20.
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Typ publikacji:
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Journal Article
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Język:
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English
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Imprint Name(s):
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Original Publication: Jena [Germany] ; New York : G. Fischer, c1992-
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MeSH Terms:
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Augmented Reality*
Surgery, Computer-Assisted*
Cadaver ; Humans ; Ilium/surgery ; Technology
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Contributed Indexing:
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Keywords: Augmented reality; Cutting guides; Iliac crest graft; Mandibular reconstruction; Markerless registration; Real-time navigation
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Entry Date(s):
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Date Created: 20210921 Date Completed: 20211130 Latest Revision: 20211130
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Update Code:
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20240105
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DOI:
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10.1016/j.aanat.2021.151834
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PMID:
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34547412
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Background: Harvesting vascularized bone grafts with computer-assisted surgery represents the gold standard for mandibular reconstruction. However, current augmented reality (AR) approaches are limited to invasive marker fixation. This trial compared a markerless AR-guided real-time navigation with virtually planned and 3D printed cutting guides for harvesting iliac crest grafts.
Material and Methods: Two commonly used iliac crest transplant configurations were virtually planned on 10 cadaver hips. Transplant harvest was performed with AR guidance and cutting guide technology. The harvested transplants were digitalized using cone beam CT. Deviations of angulation, distance and volume between the executed and planned osteotomies were measured.
Results: Both AR and cutting guides accurately rendered the virtually planned transplant volume. However, the cumulative osteotomy plane angulation differed significantly (p = 0.018) between AR (14.99 ± 11.69°) and the cutting guides (8.49 ± 5.42°). The cumulative osteotomy plane distance showed that AR-guided navigation had lower accuracy (2.65 ± 3.32 mm) than the cutting guides (1.47 ± 1.36 mm), although without significant difference.
Conclusion: This study demonstrated the clinical usability of markerless AR-guided navigation for harvesting iliac crest grafts. Further improvement of accuracy rates might bring clinical implementation closer to reality.
Competing Interests: Declaration of Competing Interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper. Conflict of interest The authors declare that they have no conflict of interest.
(Copyright © 2021 Elsevier GmbH. All rights reserved.)
