Femoroacetabular Impingement: Radiographic Diagnosis--What the Radiologist Should Know

• Published in: American journal of roentgenology (1976) Vol. 188; no. 6; pp. 1540 - 1552
• Main Authors: Tannast, Moritz, Siebenrock, Klaus A, Anderson, Suzanne E
• Format: Journal Article
• Language: English
• Published: Leesburg, VA Am Roentgen Ray Soc 01.06.2007; American Roentgen Ray Society
• Subjects: Acetabulum - abnormalities; Acetabulum - diagnostic imaging; Adult; Biological and medical sciences; Diseases of the osteoarticular system; Female; Femur - abnormalities; Femur - diagnostic imaging; Health Knowledge, Attitudes, Practice; Hip Joint - abnormalities; Hip Joint - diagnostic imaging; Humans; Joint Diseases - diagnostic imaging; Male; Medical sciences; Miscellaneous. Osteoarticular involvement in other diseases; Osteoarthritis; Practice Guidelines as Topic; Practice Patterns, Physicians; Radiographic Image Enhancement - methods; Syndrome; Radiography; Femur; Radiodiagnosis; Diseases of the osteoarticular system; Arthropathy; Exploration; Degenerative disease; Diagnosis; Pelvis bone; Osteoarthritis; Hip
• ISSN: 0361-803X; 1546-3141; 1546-3141
• DOI: 10.2214/AJR.06.0921

The purpose of this article is to show the important radiographic criteria that indicate the two types of femoroacetabular impingement: pincer and cam impingement. In addition, potential pitfalls in pelvic imaging concerning femoroacetabular impingement are shown. Femoroacetabular impingement is a major cause for early "primary" osteoarthritis of the hip. It can easily be recognized on conventional radiographs of the pelvis and the proximal femur.