Fetlock joint: the joint between the cannon bone and the pastern.

Fetlock is the common name for the metacarpophalangeal and metatarsophalangeal joints (MCPJ and MTPJ) of the horse. It is formed by the junction of the third metacarpal (forelimb) or metatarsal (hindlimb) bones (common name: the cannon bones) proximad and the proximal phalanx distad (common name: the pastern bone). Paired proximal sesamoid bones articulate with the palmar or plantar distal surface of the third metacarpal or metatarsal bones and are rigidly fixed to the proximo-palmar / -plantar edge of the proximal phalanx. The equine forelimb is the front, or thoracic limb of the horse. ... The pastern connects the fetlock joint and the hoof. ... A joint is the location at which two or more bones make contact. ... Binomial name Equus caballus Linnaeus, 1758 The horse (Equus caballus, sometimes seen as a subspecies of the Wild Horse, Equus ferus caballus) is a large odd-toed ungulate mammal, one of ten modern species of the genus Equus. ... The equine forelimb is the front, or thoracic limb of the horse. ... The pastern connects the fetlock joint and the hoof. ...

The MCPJ is a condyloid joint, allowing flexion and extension, but minimal rotation.

Problems with the Fetlock

• Windpuffs
• Sesamoiditis
• Osselet

Location of the sesamoid bones, behind the fetlock. ...

See also

• Equine forelimb anatomy
• Horse anatomy

The equine forelimb is the front, or thoracic limb of the horse. ... The anatomy of the horse comes with a large number of horse specific terms. ...

References

• Dyce KM, Sack WO, Wensing CJG. Textbook of Veterinary Anatomy (2nd Ed.) W.B. Saunders, 1996, p591