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Topic:Tarsus
The tarsus, commonly known as the hock, is a complex joint located in the hind limb of horses. It consists of several bones, including the tibia, talus, calcaneus, and several smaller tarsal bones, which together form a hinge-like structure. The tarsus plays a significant role in locomotion by providing stability, support, and flexibility to the hind limb during movement. It is a frequent site of injury and various orthopedic conditions, such as osteoarthritis, bone spavin, and synovitis, which can impact a horse's performance and well-being. This page compiles peer-reviewed research studies and scholarly articles that explore the anatomy, biomechanics, common pathologies, and treatment options associated with the equine tarsus.
Multiple hemangiosarcomas in the tarsal synovial sheath of a horse. A 2-year-old Standardbred colt with a history of intermittent lameness of the left hindlimb had hemangiosarcomatous involvement of the tarsal synovial sheath. Tibiotarsal and proximal intertarsal synovial sacs were visibly distended and there was pronounced distension of the tarsal synovial sheath. A large, firm mass was palpable in the sheath at about the level of the tuber calcis. Three circumscribed sessile growths were surgically excised from the sheath. The growths were lobulated, moderately vascular, and of fibrotic consistency. Microscopically, the pattern of the hemangiosarcomas appear...
