Jones, RK, Khan, WS, Nokes, L and Johnson, DS 2007, 'The relationship of the angle of immobilisation of the knee to the force applied to the extensor mechanism when partially weight-bearing: a gait-analysis study in normal volunteers' , Journal of Bone and Joint Surgery - British Volume, 89-B (7) , pp. 911-914.
Full text not available from this repository. (Request a copy)Abstract
We describe the influence of the angle of immobilisation during partial weight-bearing on the forces across the extensor mechanism of the knee. Gait analysis was performed on eight healthy male subjects with the right knee in an orthotic brace locked at 0°, 10°, 20° and 30°, with the brace unlocked and also without a brace. The ground reaction force, the angle of the knee and the net external flexion movement about the knee were measured and the extensor mechanism force was calculated. The results showed a direct non-linear relationship between the angle of knee flexion and the extensor mechanism force. When a brace was applied, the lowest forces occurred when the brace was locked at 0°. At 30° the forces approached the failure strength of some fixation devices. We recommend that for potentially unstable injuries of the extensor mechanism, when mobilising with partial weight-bearing, the knee should be flexed at no more than 10°.
| Item Type: | Article |
|---|---|
| Themes: | Subjects / Themes > R Medicine > R Medicine (General) Subjects / Themes > Q Science > QP Physiology Health and Wellbeing Subjects outside of the University Themes |
| Schools: | Schools > School of Environment and Life Sciences |
| Journal or Publication Title: | Journal of Bone and Joint Surgery - British Volume |
| Publisher: | British Editorial Society of Bone and Joint Surgery |
| Refereed: | Yes |
| ISSN: | 0301620X |
| Depositing User: | H Kenna |
| Date Deposited: | 15 Dec 2008 17:04 |
| Last Modified: | 01 Dec 2015 00:00 |
| URI: | http://usir.salford.ac.uk/id/eprint/216 |
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