Many different radiographic measurements have been described as indicators of structural
disease. In particular, measurements such as the lateral center-edge angle of Wiberg16, the …

Background: Following the reintroduction of metal-on-metal articulating surfaces for total hip
arthroplasty in Europe in 1988, we developed a surface arthroplasty prosthetic system using …

Background: Femoroacetabular impingement is a cause of hip pain in adults and is a possible
precursor of osteoarthritis, with the cam type of impingement being the most common. The …

Femoroacetabular impingement (FAI) is a recently proposed mechanism causing abnormal
contact stresses and potential joint damage around the hip. In the majority of cases, a bony …

Femoroacetabular impingement secondary to the cam effect is thought to be associated with
an insufficient anterior concavity in the sagittal/axial plane of the femoral head‐neck junction…

Background Cam-type femoroacetabular impingement is secondary to lack of concavity at
the anterosuperior femoral head-neck junction, resulting in reduced femoral head-neck offset …

Background: Femoroacetabular impingement has been recently described as a common
cause of hip pain and labral tears in young adults. We evaluated the early clinical results and …

Insufficient femoral head-neck offset is common in femoroacetabular impingement (FAI) and
reflected by the alpha angle, a validated measurement for quantifying this anatomic …

We evaluated radiologic and clinical features affecting the outcome of hybrid metal-on-metal
surface arthroplasty of the hip in 119 hips in patients 40 years and younger. Only the hips …

Femoroacetabular impingement (FAI) causes abnormal contact at the anterosuperior aspect
of the acetabulum in activities requiring a large hip range of motion (ROM). We addressed …