Original Article on Dr. Gross’s Website http://www.grossortho.com/types-of-arthritis
There are many types of arthritis that may lead to degeneration of the hip joint. The most common form is osteoarthritis. It is not always known why some people will have worn out their joints at age 40 while others still have normal cartilage at age 70.
Most patients who have severe hip arthritis at an early age have some underlying deformity of the hip; the most common in young men is cam FAI (cam type femoral acetabular impingement), while dysplasia is the most common deformity in young women. However, genetic factors that determine the quality of cartilage and level of activity may also play a role. In my experience 80% of men under 55 have cam FAI … Read the rest