Femoro-Acetabular Impingement (Subscribe)  

It is the aim of this study to demonstrate which disorders of the hip joint can and should be treated by hip arthroscopy. METHOD: The technique and results of hip arthroscopy in different indications are evaluated and presented by means of a selective analysis of the literature, together with the...

Femoroacetabular impingement is an important entity with well-described radiographic findings. One of the criteria of the cam type of femoroacetabular impingement is femoral head-neck dysplasia, denoted mathematically as the "alpha angle." Several observers have reported that direct measurement of the angle may not be necessary because subjective appraisal may yield...

CONCLUSION: Cartilage delamination is common in patients undergoing surgery for FAI. Fluid under the cartilage delamination is a specific but rare finding. Hypointense areas in the acetabular cartilage seen on intermediate-weighted fat-saturated or T1-weighted images appear to be helpful diagnostic criteria.
MR arthrography of acetabular cartilage delamination in femoroacetabular cam impingement. Pfirrmann...

The hip labrum has many functions, including shock absorption, joint lubrication, pressure distribution, and aiding in stability, with damage to the labrum associated with osteoarthritis. The etiology of labral tears includes trauma, femoroacetabular impingement (FAI), capsular laxity/hip hypermobility, dysplasia, and degeneration. Labral tears present with anterior hip or groin pain,...

Anterior femoroacetabular impingement (FAI) is a major etiologic factor in the pathogenesis of hip arthritis. In this condition, mechanical abnormalities of the hip joint lead to early hip dysfunction, inflammation, cartilage injury, and eventual joint degradation. FAI is now more commonly diagnosed and there is an increasing need for a...

Research over the last 10 years has suggested that small abnormalities in the shape of both the femoral head and the acetabulum can result in damage to the articular cartilage to the hip and the labrum. This has been called hip impingement or femoro-acetabular impingement(FAI) and there are two main...

Femoroacetabular impingement is a condition of too much friction in the hip joint creating damage to the articular cartilage or the labrum or both. Ganz et al. and Lavigne et al. have identified femoroacetabular impingement as the predominant cause of labral tears in the non dysplastic hip. Abnormal hip morphology...

Case presentation The technical and clinical results of two consecutive arthroscopic shavings of an osseous cam protrusion are described in our patient, a 50-year-old Caucasian man with complaints of femoroacetabular impingement. At 12 weeks after the first arthroscopic shaving, our patient still experienced pain. Using a range of motion simulation system...

We have observed damage to the labrum as a result of repetitive acetabular impingement in non-dysplastic hips, in which the femoral neck appears to abut against the acetabular labrum and a non-spherical femoral head to press against the labrum and adjacent cartilage. In both mechanisms anatomical variations of the proximal...

This biographical sketch of M. N. Smith-Petersen corresponds to the historic text, The Classic: Treatment of Malum Coxae Senilis, Old Slipped Upper Femoral Epiphysis, Intrapelvic Protrusion of the Acetabulum, and Coxa Plana by Means of Acetabuloplasty - 1935 Case report
Femoroacetabular impingement: current status of diagnosis and treatment: Marius Nygaard Smith-Petersen,...

Discussion of X-ray showing FAI (Cam type)

Femoroacetabular impingement or FAI is a condition of too much friction in the hip joint. Basically, the ball (femoral head) and socket (acetabulum) rub abnormally creating damage to the hip joint. The damage can occur to the articular cartilage (smooth white surface of the ball or socket) or... Patient Provider

Femoroacetabular impingement (FAI) occurs when an osseous abnormality of the proximal femur (cam) or acetabulum (pincer) triggers damage to the acetabular labrum and articular cartilage in the hip.
The purpose of this study was to define associated pathologies and determine if an arthroscopic approach to treating FAI can allow professional athletes...

Family physicians can identify patients with possible femoroacetabular impingement syndrome and play an important role in the appropriate management of these cases.
Femoroacetabular impingement syndrome: Nonarthritic hip pain in young adults. Dooley PJ. Can Fam Physician. 2008 Jan;54(1):42-7. Full text

Although current concepts of anterior femoroacetabular impingement predict damage in the labrum and the cartilage, the actual joint damage has not been verified by computer simulation.
We concluded femoroacetabular impingement mechanism contributes to early osteoarthritis including labral lesions.
Hip damage occurs at the zone of femoroacetabular impingement. Tannast M, Goricki D, Beck M,...