The geometrical axis of the talocrural joint—Suggestions for a new measurement of the talocrural joint axis

•Study shows a system for estimating the geometrical talocrural joint axis.•High number of 98 CT scans analyzed.•High interindividual variations highlight the potential need of patient specific implantation techniques for total ankle replacement. Despite intensive research there is no consensus abou...

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Published in:Foot and ankle surgery 2019-06, Vol.25 (3), p.371-377
Main Authors: Claassen, Leif, Luedtke, Philipp, Yao, Daiwei, Ettinger, Sarah, Daniilidis, Kiriakos, Nowakowski, Andrej M., Mueller-Gerbl, Magdalena, Stukenborg-Colsman, Christina, Plaass, Christian
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Language:English
Subjects:
Ankle joint
CT-scan
Joint axis
Talocrural joint
Total ankle replacement
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cited_by cdi_FETCH-LOGICAL-c353t-fbde533aba78937208808fbe022e1339e0cacbfd6261b784940c061297ae193f3
cites cdi_FETCH-LOGICAL-c353t-fbde533aba78937208808fbe022e1339e0cacbfd6261b784940c061297ae193f3
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container_start_page 371
container_title Foot and ankle surgery
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creator Claassen, Leif
Luedtke, Philipp
Yao, Daiwei
Ettinger, Sarah
Daniilidis, Kiriakos
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Mueller-Gerbl, Magdalena
Stukenborg-Colsman, Christina
Plaass, Christian
description •Study shows a system for estimating the geometrical talocrural joint axis.•High number of 98 CT scans analyzed.•High interindividual variations highlight the potential need of patient specific implantation techniques for total ankle replacement. Despite intensive research there is no consensus about the talocrural joint axis. The aim of the present study is a new method to determinate the geometric rotational axis of the talocrural joint. We analyzed 98 CT-scans of full cadaver Caucasian legs. We generated three-dimensional reconstruction models of the talus. A best fitting cone was orientated to the talar articular surface. The geometric rotational axis was defined to be the axis of this cone. The geometric rotational axis of the talocrural joint is orientated from lateral–distal to medial–proximal (85.6°±10 compared to anatomical tibial axis in torsional plane), from posterior–distal to anterior–proximal (81.43°±44.35 compared to anatomical tibial axis in sagittal plane) and from posterior–medial to anterior–lateral (169.2°±5.91 compared to intermalleolar axis in axial plane). The consideration of our results might be helpful for better understanding of ankle biomechanics.
doi_str_mv 10.1016/j.fas.2018.02.003
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source ScienceDirect Freedom Collection 2022-2024
subjects Ankle joint
CT-scan
Joint axis
Talocrural joint
Total ankle replacement
title The geometrical axis of the talocrural joint—Suggestions for a new measurement of the talocrural joint axis
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