The Anteroposterior Pelvic Radiograph: Acetabular and Femoral Measurements and Relation to Hip Pathologies
Our knowledge of the natural history of prearthritic hip conditions continues to evolve, with vast improvements in understanding the etiology of premature hip failure occurring in the past 20 years. There is now an established body of evidence that femoroacetabular impingement (FAI) and hip dysplasia are the 2 main causes of early hip degeneration1. Regardless of the etiology, surgical treatment for end-stage osteoarthritis is the same: hip arthroplasty. However, many patients become symptomatic from various hip pathologies long before degenerative changes occur2,3. In an attempt to treat the underlying pathology prior to the development of osteoarthritis, the techniques of hip preservation surgery, including hip arthroscopy and open realignment osteotomies, have been employed with increasing frequency4.