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Orthopaedic Proceedings
Vol. 94-B, Issue SUPP_XXXIX | Pages 59 - 59
1 Sep 2012
Lintz F Barton T Harries W Hepple S Millett M Winson I
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Background

Traditional measurements of hindfoot alignment are based on the tibio-calcaneal angle and do not take the forefoot into account. We have developed an algorithm based on standard radiographs to calculate calcaneal offset using Ground Reaction Force (GRF).

Hypothesis

The GRF algorithm measures hindfoot alignment without using the tibial axis


Orthopaedic Proceedings
Vol. 94-B, Issue SUPP_XXII | Pages 61 - 61
1 May 2012
Lintz F Millett M Barton T Adams M
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Background

The Plantaris Longus Tendon (PLT) may be implicated in Achilles (AT) tendinopathy. Different mechanical characteristics may be the cause. This study is designed to measure these.

Methods

Six PLT and six AT were harvested from frozen cadavers (aged 65-88). Samples were stretched to failure using a Minimat 2000(tm) (Rheometric Scientific Inc.). Force and elongation were recorded. Calculated tangent stiffness, failure stress and strain were obtained. Averaged mechanical properties were compared using paired, one-tailed t-tests.