Skip to main content

Research Repository

Advanced Search

Properties and Function of the Flexor Hallucis Capsularis Interphalangeus Tendon.

Properties and Function of the Flexor Hallucis Capsularis Interphalangeus Tendon. Thumbnail


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.

Acceptance Date Sep 24, 2019
Publication Date Oct 3, 2019
Publicly Available Date Mar 28, 2024
Journal Clinical Anatomy
Print ISSN 0897-3806
Publisher Wiley
DOI https://doi.org/10.1002/ca.23490
Keywords anatomy, surgery
Publisher URL http://doi.org/10.1002/ca.23490

Files




Downloadable Citations