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Permanent URL to this publication: http://dx.doi.org/10.5167/uzh-43311

Osterhoff, G; Löffler, S; Steinke, H; Feja, C; Josten, C; Hepp, P (2011). Comparative anatomical measurements of osseous structures in the ovine and human knee. Knee, 18(2):98-103.

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Abstract

The ovine stifle has been increasingly used as a large animal model for the human knee. Still, comparative anatomical measurements of the knee in sheep and humans are missing. Thus, the purpose of this study was to describe and measure the osseous anatomy of the ovine stifle in comparison to the human knee. Twenty-four stifles of skeletal-mature merino-sheep and 24 human cadaver knees were obtained and distances between selected anatomical structures of the distal femur, the proximal tibia, and the patella were measured digitally and documented. Based on these, intercondylar ratio, tibial aspect ratio, patella aspect ratio and the cortical index were calculated. Regarding epicondylar width, lateral condylar width, medial condylar width and the tibial dimensions, the ovine stifle can be considered as a human knee scaled down by one third. However, sheep have a smaller trochlear width and a narrower femoral intercondylar notch than humans resulting in lower relative values for intercondylar width and intercondylar height. The distal femur's cortical index is the same in both species. In contrast, sheep have a massive bone stock below their tibial plateau and a proximal tibial shaft with remarkably thick cortical bone. The ovine stifle can be regarded as a useful model for the human knee. However, future studies should consider the differences in the femoral intercondylar notch width, the patellofemoral joint's biomechanics and the proximal tibia's cortical bone stock.

Item Type:Journal Article, refereed, original work
Communities & Collections:04 Faculty of Medicine > University Hospital Zurich > Clinic for Trauma Surgery
DDC:610 Medicine & health
Language:English
Date:2011
Deposited On:02 Feb 2011 14:09
Last Modified:27 Nov 2013 21:24
Publisher:Elsevier
ISSN:0968-0160
Publisher DOI:10.1016/j.knee.2010.02.001
PubMed ID:20188573
Citations:Web of Science®. Times Cited: 15
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