The traditional X-Ray used for determining Hip Dysplasia has not resulted in any decreased incidence in the arthritic changes which are the result of hips which have too much laxity. There is also no predictive, repeatable, statistically accountable ability to choose our breeding stock in the breeds of dog that are affected.

The OFA analysis of dogs is based on a static view of the pelvis, with no forces applied to the hip. The underlying problem in hips that leads to the development of degenerative disease (Canine Hip Dysplasia) is "laxity," the degree of movement of the "ball" of the femur out of the socket under normal weight bearing conditions, and this is not visible in static X-Rays.

There is a new way to evaluate hips. It was developed at the University of Pennsylvania , and is called the PennHIP®. It involves a series of 3 radiographs taken under heavy sedation or anesthesia. One is the traditional extended view that is used by the OFA. It then includes two dynamic views: a view take under maximal compression of the femoral head (ball) into the pelvic socket, and a view where a special device is used to wedge or pry the ball out of the socket to its maximum extent. The greater the laxity of the hip, the greater the displacement seen on the distraction view, and the more likelihood for that individual to develop Hip Dysplasia and to pass it onto offspring. This series of films are repeatable, and based on bio-engineering principles. It uses a mathematical evaluation of measurements taken from the X-Rays and is a proven predictor of that dog's likelihood to become dysplastic, and the potential for him or her to pass on the genetic hip laxity genes.

There are about 1600 individuals worldwide that are now licensed and trained to do the PennHIP® analysis. Only individuals who have attended the training seminar and passed a stringent analysis of test cases can submit films to PennHIP®. Dr. Mannix is fully certified.

There is a value to early determination of your dog's hip status. We may make suggestions involving food and supplements and plans involving exercise regimens. There are surgeries that can greatly diminish the development of the degenerative changes that occur in the presence of joint "laxity.". One of the simplest surgical procedures is done as early as 16-18 weeks of age, while another at 6-12 months of age. Since the turn-around time for the PennHIP® report is about 14 days, we often suggest that the procedure be performed at 10-12 weeks of age.

Please fell free to pick up an informative brochure or to ask us about the benefit to your dog that this procedure can provide.