What is hip dysplasia?
The hip is a ball-and-socket joint. The socket is formed by the acetabulum, which is part of the pelvis. Hip dysplasia means that the socket is too shallow to completely cover the ball-shaped ending of the thighbone. The shallow cup is not very effective in cushioning high impact forces, for example during sports. This may cause abnormal wear on the joint. A joint that is dysplastic will wear out faster than one that has a normal shape.