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Decreased fetlock drop during the stance phase of the stride may be seen in cases of lameness, with the lamer leg producing less drop than the sound leg as the horse tries to relieve weight on the painful limb. [17] Decreased height to the stride (flight arc), or dragging of the toes, also indicates lameness, as the horse avoids bending its joints.
The ankle joint in humans corresponds to the hock of horses. The fetlock is a metacarpo- or metatarsophalangeal joint which corresponds to the human upper knuckle, such as that on the ball of the foot. This usage likely originated from early definitions of "ankle" as "between foot and leg" derived from the common root of "angle" meaning to bend ...
However, fracture healing in horses is complicated by their size, flightiness, and desire to stand. Horses are at risk of re-injury of the fracture site, especially when trying to rise after lying down, or when recovering from anesthesia following fracture repair. Forced recumbency is not an option for horses, making healing more difficult.
Fetlock luxations account for 91% of all fatal luxation injuries. Due to the construction of the fetlock joint, luxation will result in either a complete rupture of the flexor tendons and suspensory ligament or a lateral disarticulation. The joint capsule may also be completely ruptured and the articular portion of the bones exposed to view. [51]
Skeleton of the lower forelimb. Each forelimb of the horse runs from the scapula or shoulder blade to the third phalanx (coffin or pedal) bones. In between are the humerus (arm), radius (forearm), elbow joint, ulna (elbow), carpus (knee) bones and joint, large metacarpal (cannon), small metacarpal (splint), sesamoid, fetlock joint, first phalanx (long pastern), pastern joint, second phalanx ...
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Fairly commonly injured by horses doing fast work, the DDFT is round in cross section. Superficial digital flexor: Runs down the back of the leg, behind the carpus and cannon, branches below the fetlock and inserts into the distal side of the 1st phalanx and proximal side of the 2nd phalanx. Flexes the elbow, carpus and lower joints.
References A ace Slang for the drug acepromazine or acetyl promazine (trade names Atravet or Acezine), which is a sedative : 3 commonly used on horses during veterinary treatment, but also illegal in the show ring. Also abbreviated ACP. action The way a horse elevates its legs, knees, hock, and feet. : 3 Also includes how the horse uses its shoulder, humerus, elbow, and stifle; most often used ...