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The medial-lateral force distribution in the ovine stifle joint during walking

The medial-lateral force distribution in the ovine stifle joint during walking
The medial-lateral force distribution in the ovine stifle joint during walking
Knowledge of the load distribution in the knee is essential for understanding the interaction between mechanics and biology in both the healthy and diseased joint. While the sheep stifle joint is a predominant model for better understanding regeneration after injury, little is known about the compartmental force distribution between the medial and lateral condyles. By including sheep specific anatomy and gait analyses, we used computational musculoskeletal analyses to estimate the medial–lateral joint contact force distribution in ovine stifle joints during walking by simplifying the system of equations into a 2D problem that was solved directly. Gait analysis was conducted using bone markers in three female Merino-mix sheep. Joint contact forces were computed with respect to the specific anatomy of the ovine tibia, resulting in low (<0.13 bodyweight) mean anteroposterior shear forces throughout the gait cycle, with mean peak contact forces perpendicular to the tibial plateau of 2.2 times bodyweight. The medial–lateral compartmental load distribution across the tibial condyles was determined and revealed loading predominantly on the medial condyle, bearing approximately 75% of the total load during phases of peak loading. By considering the anatomical characteristics of the ovine stifle joint, together with the dynamic forces during gait, this study provides evidence for predominantly medial loading in sheep, somewhat similar to the distribution reported in man. However, the exact conditions under which the loading in the ovine stifle joint is representative of the human situation will need to be elucidated in further studies
knee, medio-lateral force distribution, sheep, ovine stifle joint
0736-0266
567-571
Taylor, William R.
1ed48ef6-e396-40f5-8434-6c0628c9d3ca
Pöpplau, Berry M.
eb8e93c6-9c78-49f2-b918-04a220094b82
König, Christian
5130c0d7-b085-4459-9cc3-9b9d8ebcf539
Ehrig, Rainald M.
039b8e91-4867-4a1b-8b73-0381c6411d40
Zachow, Stefan
d3361c36-1a25-4c80-b246-58d9b0a6bdad
Duda, Georg N.
ac4e207b-3e2e-4c84-a6c4-cb67531f890b
Heller, Markus O.
3da19d2a-f34d-4ff1-8a34-9b5a7e695829
Taylor, William R.
1ed48ef6-e396-40f5-8434-6c0628c9d3ca
Pöpplau, Berry M.
eb8e93c6-9c78-49f2-b918-04a220094b82
König, Christian
5130c0d7-b085-4459-9cc3-9b9d8ebcf539
Ehrig, Rainald M.
039b8e91-4867-4a1b-8b73-0381c6411d40
Zachow, Stefan
d3361c36-1a25-4c80-b246-58d9b0a6bdad
Duda, Georg N.
ac4e207b-3e2e-4c84-a6c4-cb67531f890b
Heller, Markus O.
3da19d2a-f34d-4ff1-8a34-9b5a7e695829

Taylor, William R., Pöpplau, Berry M., König, Christian, Ehrig, Rainald M., Zachow, Stefan, Duda, Georg N. and Heller, Markus O. (2011) The medial-lateral force distribution in the ovine stifle joint during walking. Journal of Orthopaedic Research, 29 (4), 567-571. (doi:10.1002/jor.21254). (PMID:20957731)

Record type: Article

Abstract

Knowledge of the load distribution in the knee is essential for understanding the interaction between mechanics and biology in both the healthy and diseased joint. While the sheep stifle joint is a predominant model for better understanding regeneration after injury, little is known about the compartmental force distribution between the medial and lateral condyles. By including sheep specific anatomy and gait analyses, we used computational musculoskeletal analyses to estimate the medial–lateral joint contact force distribution in ovine stifle joints during walking by simplifying the system of equations into a 2D problem that was solved directly. Gait analysis was conducted using bone markers in three female Merino-mix sheep. Joint contact forces were computed with respect to the specific anatomy of the ovine tibia, resulting in low (<0.13 bodyweight) mean anteroposterior shear forces throughout the gait cycle, with mean peak contact forces perpendicular to the tibial plateau of 2.2 times bodyweight. The medial–lateral compartmental load distribution across the tibial condyles was determined and revealed loading predominantly on the medial condyle, bearing approximately 75% of the total load during phases of peak loading. By considering the anatomical characteristics of the ovine stifle joint, together with the dynamic forces during gait, this study provides evidence for predominantly medial loading in sheep, somewhat similar to the distribution reported in man. However, the exact conditions under which the loading in the ovine stifle joint is representative of the human situation will need to be elucidated in further studies

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More information

Published date: April 2011
Keywords: knee, medio-lateral force distribution, sheep, ovine stifle joint
Organisations: Bioengineering Group

Identifiers

Local EPrints ID: 348533
URI: http://eprints.soton.ac.uk/id/eprint/348533
ISSN: 0736-0266
PURE UUID: 15cb27c8-4349-4a14-b059-1207cf4f71b0
ORCID for Markus O. Heller: ORCID iD orcid.org/0000-0002-7879-1135

Catalogue record

Date deposited: 15 Feb 2013 09:05
Last modified: 19 Nov 2019 01:37

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