Stringhalt, or equine reflex hypertonia, is a neuromuscular condition that causes a gait abnormality characterized by involuntary, exaggerated upward movement of one or both of the hindlimbs. It looks like a jerk or hop, with the affected hindlimb(s) snapped up towards the abdomen. This generally occurs with every stride at the walk but can lessen at the trot and is usually absent at the canter. The degree of hyperflexion varies from mild to severe and is most obvious when the horse is turning sharply, backing, going down a slope, in the first few walking steps after standing still, or during gait transitions. A hopping gait may be exhibited in severe cases.

Source: Research Radio by Equine Guelph | with Dr. Steven Roche

Dr. Judith Koenig of the Ontario Veterinary College discusses the progress of a study pursuing the use of stem cells for treating horses with osteoarthritis of the fetlock joint.

Nothing to horse around with - Be on the lookout for the three most common skin cancers afflicting horses and contact your veterinarian promptly if you find suspicious lumps or bumps. Skin cancer is the most prevalent type of equine cancer, accounting for up to 80 percent of all cancers reported.