Ask The Vet

Provided By: Melissa McKee DVM

Windpuffs are fluid distensions of the digital tendon sheath in the fetlock area. Fluid pressure in the fetlock joints is also often called a windpuff, although the actual joint swelling is a little further forward than the digital sheath. Both are natural signs of wear and tear as the horse ages. If the puffiness appeared acutely, or if the horse is sore on flexion of the joint, it may be worth having your vet investigate the area in case an injury has occurred. This could include suspensory branch and tendon injuries over the back of the fetlock, sprains, and arthritis. I do find that older horses, those with heavier frames, and ones that use their hind end heavily for a living (dressage horses, GP jumpers) are prone to developing distension in the digital sheaths of the hind legs. This can be a sign of early stress on the suspensory/sesamoid region and well as injury to the DDF tendon as it runs over the back of the fetlock. Fetlock flexion tests can cause surprising lameness if there is active inflammation there. Management of windpuffs depends on the diagnosis. If they are due to simple wear and tear, keeping the legs bandaged with a sweat can reduce the filling. Regular exercise will also keep them flexible and the synovial fluid flowing through the joint and sheath. If the swelling is due to injury, potential treatments range from simple rest to injections, surgery, and shockwave therapy. In general, once windpuffs are evident they are permanent, but regular bandaging can keep them to a minimal size.