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Injury to the flexor tendons leads to inflammation, edema, and secondary compression of the surrounding tissues, similar to carpal tunnel syndrome. This makes it more difficult for the SDFT to glide over the surface of the joint, and the palmar annular ligament may thicken and adhere to the tendon sheath or SDFT, further reducing function of ...
For example, racehorses are more likely to have fatigue-related injuries such as stress fractures and injury to the flexor tendons, while western show horses are more likely to have navicular syndrome and English sport horses are more likely to have osteoarthritis or injury to the suspensory ligament. [10]
Repeated injuries to the tendon sheath, often caused by excessive training or work on hard surfaces, can cause larger problems and lameness. [30] Leg injuries that are not immediately fatal still may be life-threatening because a horse's weight must be distributed on all four legs to prevent circulatory problems, laminitis, and other infections ...
A flexion test is a preliminary veterinary procedure performed on a horse, generally during a prepurchase or a lameness exam. The purpose is to accentuate any pain that may be associated with a joint or soft-tissue structure, allowing the practitioner to localize a lameness to a specific area, or to alert a practitioner to the presence of sub-clinical disease that may be present during a pre ...
Cross section of horse foot. The relevant areas are: 2. Second phalanx. 4. Coffin bone. 6. Navicular bone. 9. Deep digital flexor tendon. 16. Plantar cushion. 17. Hoof. Knowledge of equine forelimb anatomy is especially useful for understanding navicular syndrome. The navicular bone lies behind the coffin bone and under the small pastern bone ...
A totally ruptured superficial digital flexor tendon (SDFT) will cause a visible drop in the angle of the fetlock. [57] Catastrophic ruptured tendons account for as much as 3% of all tendon injuries. [58] Tendinitis is inflammation of a tendon. Tendons connect muscles to bone and normally have an elastic property so that they can stretch.
Deep digital flexor: 3 tendons of the deep digital flexor muscle travel distally and join at the carpus, where they pass through the carpal canal, and travel distally along the back of the leg, finally inserting into the palmar side of the third phalanx. Below the knee/hock, the tendon is superficial to the suspensory ligament, but deep to the ...
A combination of forces (e.g. the tension of the deep digital flexor tendon and the weight of the horse) result in the deep digital flexor tendon literally pulling the dorsal face of the coffin bone away from the inside of the hoof wall, which allows the coffin bone to rotate.