Spontaneous bilateral ankylosis of the carpometacarpal joint in a Paint Horse

Authors: 
Oosterlinck, M.; Pille, F.; Gasthuys, F.; Saunders, J.H.
Volume: 
21
Number: 
9
Pages: 
452-454(3)
Journal: 
Equine Veterinary Education
Date: 
September 2009

An 8-year-old Paint Horse gelding was evaluated for a persistent left forelimb lameness (grade 4/5), with a hard swelling at the dorsomedial aspect of the carpometacarpal joint, due to osteoarthritis. Previous systemic and local anti-inflammatory therapy had only a temporary effect. Partial carpal arthrodesis was suggested, but the owner elected for conservative treatment. The horse was confined to a small paddock and received phytotherapeutic supplementation with Harpagophytum procumbens. The lameness gradually resolved but a similar hard swelling developed on the right carpus. Radiographic follow-up 1.5 years later revealed a spontaneous bilateral ankylosis of the carpometacarpal joint.