Femoroacetabular impingement (FAI) refers to a condition characterized by impingement of the femoral head-neck junction against the acetabular rim, often due to underlying osseous and/or soft tissue morphological abnormalities. It is a common cause of hip pain and limited range of motion in young and middle-aged adults. Hip preservation surgery aims to correct the morphological variants seen in...

PURPOSE To establish if a positive impingement sign in femoroacetabular impingement (FAI) may result from entrapment of the fat pad located at the anterior head-neck junction of the upper femur. This fat pad is routinely removed before any cam lesion excision. METHODS We report a prospective study of 142 consecutive hip arthroscopies for symptomatic FAI where the aim was to remove the arthros...

Cam femoroacetabular impingement (FAI) is characterized by a malformed femoral head that may cause shearing between the femur and acetabulum, leading to intraarticular damage and early hip osteoarthritis. Radiographic measurements are used to diagnose cam FAI, but provide only a planar view of the femoral head and often assume the ideal femur shape to be spherical. Statistical shape modeling (S...

BACKGROUND There is a dearth of literature examining the causes of cam-type femoroacetabular impingement (FAI) and when such morphology appears. The purpose of the current study was to analyze how the ossific portion of the proximal femur develops over time with respect to standard cam-type FAI parameters. METHODS A collection of 193 femurs from cadavers aged 4 to 21 years were evaluated. The...

Objectives: Femoroacetabular impingement syndrome is a painful disorder of the hip formed by movements in joint between femoral head-neck junction and acetabular edge. The aim this study was to determine prevalence radiological femoroacetabular findings young, asymptomatic Turkish population. Methods: A total 1000 abdominal pelvic CT images were collected from patients aged 18–40 years. Measure...

British Journal of General Practice, July 2013 e513 INTRODUCTION Femoroacetabular impingement (FAI) is a pathological hip condition characterised by abnormal contact between the acetabulum and femoral head–neck junction.1 This can occur within the normal physiological range of motion as a result of osseous abnormalities described as either cam or pincer deformities. Cam deformities describe an ...

Pincer-type femoroacetabular impingement is an acetabular/pelvic-sided disorder. Although acetabular overcoverage is a common theme for this disorder, there are distinct pincer subtypes with variable pathomorphologies that must be considered when contemplating the ideal approach and treatment for these disorders. In addition, emerging evidence suggests that extra-articular pelvic structures, su...

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. Using three-dimensional computed tomography the anterior and posterior concavity of the femoral head-neck junction was assessed in 36 painful non-dysplastic hips (30 patients). The mean age of the symptomatic ...