Abstract

IntroductionThe articulation between the talus and the calcaneus, the subtalar joint, is important in chronic ankle instability. The relationship between the ligaments and the articular surfaces of this joint has not been thoroughly discussed in the literature. This study aims to describe and quantify the relationship between the morphology and attachments of the interosseous talocalcaneal ligament (ITCL) and the total surface area and configuration of the joint facets on the calcaneus.Methods20 subtalar joints from embalmed cadavers will be dissected and distracted. Measurements of the ITCL and the joint facets on the calcaneus will be reported.ResultsPreliminary results suggest a positive correlation between thickness of ITCL and total surface area of the talar facets on the calcaneus.DiscussionSubtalar joint instability may contribute to recurrent ankle sprains. Knowledge of the ligaments and articular surfaces of the joint is critical for effective diagnosis and treatment. Reconstruction of the ITCL could be crucial in the treatment of chronic ankle instability. Precise information about the morphology, attachments and relationship of the ITCL to the joint facets is necessary to maximize the positive results of reconstructive surgery. This work was supported by the Anatomy & Cell Biology Department at the University of Western Ontario and the Ontario Graduate Scholarship program.Grant Funding SourceOGS

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