Hip Dysplasia is a developmental disease of the hip joint that affects many breeds of dogs. The head of the femur (thigh bone) and the acetabulum (hip socket) become incompatible; the joint weakens and loses proper function. Reluctance to engage in strenuous physical activity, lameness and pain are all possible signs of dysplasia, usually manifested between the ages of 4 months to 1 year.
X-rays are definitively diagnostic and will show evidence of abnormal joint laxity. Treatment is aimed at relieving symptoms of pain and includes drug therapy and/or surgery. Hip dysplasia is thought to be hereditary, but other factors such as diet and conditioning cannot be ruled out. Dogs older than 2 years can have their x-rays evaluated and may be registered free of the disease by the Orthopedic Foundation for Animals “OFA” in Columbia, Missouri.