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Fürnstahl, P; Székely, G; Gerber, C; Hodler, J; Snedeker, J G; Harders, M (2012). Computer assisted reconstruction of complex proximal humerus fractures for preoperative planning. Medical Image Analysis, 16(3):704-720.

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Operative treatment of displaced fractures of the proximal humerus is among the most difficult problems in orthopedic shoulder surgery. An accurate preoperative assessment of fragment displacement is crucial for a successful joint restoration. We present a computer assisted approach to precisely quantify these displacements. The bone is virtually reconstructed by multi-fragment alignment. In case of largely displaced pieces, a reconstruction template based on the contralateral humerus is incorporated in the algorithm to determine the optimal assembly. Cadaver experiments were carried out to evaluate our approach. All cases could be successfully reconstructed with little user interaction, and only requiring a few minutes of processing time. On average, the reassembled bone geometries resulted in a translational displacement error of 1.3±0.4mm and a rotational error of 3.4±2.2°, respectively.

Item Type:Journal Article, refereed, original work
Communities & Collections:04 Faculty of Medicine > University Hospital Zurich > Clinic for Diagnostic and Interventional Radiology
04 Faculty of Medicine > Balgrist University Hospital, Swiss Spinal Cord Injury Center
DDC:610 Medicine & health
Deposited On:28 Dec 2010 09:47
Last Modified:27 Nov 2013 23:48
Publisher DOI:10.1016/j.media.2010.07.012
PubMed ID:21036097
Citations:Web of Science®
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Scopus®. Citation Count: 1

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