Harasambato’s Weblog

mayo 7, 2010

Carpometacarpal Osteoarthritis in Horses:

La Sra.  Ma. Alejandra Bauzá-Brown representa a Haras Ambato en USA. Escribe una de las páginas mas interesantes que he leido en el Facebook su nombre es JUMPERS. Allí ha publicado este artículo que los invito a leer por la importancia de su contenido.

Osteoarthritis of the carpometacarpal joint (the lower joint space of the knee in a horse’s front leg) is a debilitating and life-threatening condition. However, surgically fusing the joint appears to be a viable treatment option in affected horses.

A retrospective review of medical records of 33 horses diagnosed with carpometacarpal osteoarthritis (CMC-OA) revealed this condition occurs primarily in middle age and older Quarter Horses and Arabians. Predominant clinical signs are severe lameness preventing normal use and swelling over the junction of the second carpal and second metacarpal bones.

“Carpometacarpal osteoarthritis in horses is characterized by progressive and debilitating lameness that responds poorly to medical treatment with most affected horses being euthanized within 4 years of diagnosis” and “conventional treatment methods are unsuccessful for treating CMC-OA.”

There is the use of a surgical technique called arthrodesis–the surgical fixation of a joint to ultimately result in bone fusion–for treating CMC-OA.
•10/12 (83%) of horses experienced slight to moderate pain postoperatively (during the first 30 days);
•11/12 (92%) of horses were capable of returning to work by 6 months postoperatively;
•At anaverage of 28.6 months, postoperatively, 10/12 (83%) of horses were considered sound and 8/12 (67%) had returned to their pre-CMC-OA activities, and
•100% of the owners considered the surgery a success.

“Arthrodesis of the CMC joint should be considered a treatment option for CMC-OA.”

Three separate studies on CMC-OA and arthrodesis of the CMC joint were published in tandem by Panizzi et al. in the December edition of the journal Veterinary Surgery

The abstracts are available for free by searching the journal’s December 2009 Table of Contents
Despite aggressive research efforts, there is no good test or technique that allows to obtain an early diagnosis of osteoarthritis in horses.
But you can check for swelling, and stiffness on the joints.
The joints most frequently affected by osteoarthritis include the knee, fetlock, coffin and pastern. Arthritis is also common in the hock. You can also check for stiffness, shortness of stride and obvious lameness.
Osteoarthritis often results from simple wear and tear of daily exercise, but may also be caused by poor conformation or trauma.
Thanks to the horse.com

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