Guide to canine hip dysplasia

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Canine hip dysplasia is a genetic disorder in which a dog's ball-and-socket hip joint is poorly joined. This joint should fit neatly together in an arrangement that allows dogs to move their legs freely and without pain. Dogs with hip dysplasia are prone to developing arthritis and related joint pain as they age because the ball and socket rub against each other, eroding the soft cartilage. Hip dysplasia can affect either or both of the rear leg joints.

Commonly Affected Breeds

Hip dysplasia is seen in almost every dog breed, but it is predominant in larger dogs like the German Shepherd, St. Bernard, Labrador Retriever, Pointers, and Setters. Hip dysplasia is primarily a genetic condition, but research shows that environmental factors can also play a part. Overfeeding, especially of puppies, as well as excessive exercise may predispose a dog to hip dysplasia.

Diagnosis

Symptoms of severe hip dysplasia usually appear before the dog is a year old. Common signs are rear leg pain, poor coordination, trouble rising to their feet and a limp or wavering gait. Dogs with severe hip dysplasia typically develop lameness by the time they are two. Dogs who have less severe cases may not experience arthritis and the related pain or lameness until they are six to ten years old.

The clinical signs of hip dysplasia are similar to those of other diseases, so veterinarians rely on X-rays, where they look for abnormal hip joints and degenerative changes to make a final diagnosis. Some dogs may need a mild anesthetic in order to keep them in the correct position on the radiographic table.

Treatment

Veterinarians treat hip dysplasia with either drugs or surgery, depending on the severity of the disease. Drug therapy will not reverse or cure the progression of hip dysplasia, but it does relieve the pain. There are several steroidal and non-steroidal, anti-inflammatory drugs available from your veterinarian, with most requiring daily administration. Many dogs experience tremendous relief from pain, allowing them to return to a more active lifestyle free of joint pain.

Modern advances in veterinary surgical techniques  [Continued]

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