Thomas, RL, Kuiper, JH and Knight, TP (2019) Properties and Function of the Flexor Hallucis Capsularis Interphalangeus Tendon. Clinical Anatomy.

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Abstract

INTRODUCTION: The fibrocartilagenous plantar plates of the forefoot are biomechanically important, forming the primary distal attachment for the plantar aponeurosis. They are integral to the function of the windlass mechanism in supporting the arches of the foot in gait. Dissection of the cadaveric hallux revealed an organised sagittal thickening of the dorsal side of the flexor hallucis longus (FHL) sheath, which attached the interphalangeal plantar plate to the metatarsophalangeal (MTP) plantar plate. A description of a similar structure was made in 1984 when it was termed the flexor hallucis capsularis interphalangeus (FHCI) - however, it has not been researched since, and we aim to study it further and identify its characteristics. METHOD: Eight specimens were dissected from four cadavers. Two were stained and examined under magnification in both polarized and non polarized light. The remaining 6 were subjected to micrometer testing of their tensile properties. RESULTS: Both the histological features and mechanical properties were consistent with tendon; with cross sectional area, ultimate tensile strength and stiffness varying between specimens. CONCLUSIONS: Based on its location and properties, the FHCI tendon may be involved in limiting dorsiflexion of the first MTP joint and could have clinical relevance in pathological processes around both the first and second MTP joints. Clin. Anat., 2019. © 2019 Wiley Periodicals, Inc.

Item Type: Article
Additional Information: This is the accepted author manuscript (AAM). The final published version (version of record) is available online via Wiley at http://doi.org/10.1002/ca.23490 - please refer to any applicable terms of use of the publisher.
Uncontrolled Keywords: anatomy, surgery
Subjects: R Medicine > RC Internal medicine
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Depositing User: Symplectic
Date Deposited: 12 Dec 2019 16:55
Last Modified: 12 Dec 2019 16:57
URI: http://eprints.keele.ac.uk/id/eprint/7394

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