Collateral Ligaments of the Tarsocrural Joint An Anatomic and Functional Study |
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| Authors: | DENNIS N. ARON DVM DiplomateACVS P. TOM PURINTON DVM PhD |
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| Affiliation: | Departments of Small Animal Medicine, College of Veterinary Medicine, University of Georgia, Athens, Georgia.;Departments of Anatomy and Radiology, College of Veterinary Medicine, University of Georgia, Athens, Georgia. |
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| Abstract: | Forty canine hock joints were used to study the anatomy and function of the medial and lateral tarsocrural collateral ligament complexes. Dissection of the ligaments was used to describe the anatomic arrangement, and location and tenseness in various positions. The component parts of the ligament complexes were evaluated for their contribution to stability of the tarsocrural joint. The medial and lateral tarsocrural collateral ligament complexes were composed of several components. The medial tibiotalar and lateral calcaneofibular short component parts were important static joint stabilizers in both flexion and extension. The long medial and lateral ligaments and the medial tibiocentral short component were less important in maintaining joint stability in flexion but were important in extension. The stability of the joint as a whole did not depend on any individual ligament component, but rather all components of the ligament complex, including the joint capsule and malleoli, acted together to stabilize the joint. |
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