Marc J. Philippon

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Over an eight-month period we prospectively enrolled 122 patients who underwent arthroscopic surgery of the hip for femoroacetabular impingement and met the inclusion criteria for this study. Patients with bilateral hip arthroscopy, avascular necrosis and previous hip surgery were excluded. Ten patients refused to participate leaving 112 in the study. There(More)
PURPOSE The purpose of this study was to offer evidence of validity for the Hip Outcome Score (HOS) based on internal structure, test content, and relation to other variables. METHODS The study population consisted of 507 subjects with a labral tear. Internal structure was evaluated by use of factor analysis and coefficient alpha. Test content was(More)
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. Although the precise etiology of FAI is not well understood, both types of FAI are common in athletes presenting with hip pain, loss of range-of-motion, and(More)
PURPOSE The purpose of this study was to develop a self-administered evaluative tool to measure health-related quality of life in young, active patients with hip disorders. METHODS This outcome measure was developed for active patients (aged 18 to 60 years, Tegner activity level ≥ 4) presenting with a variety of symptomatic hip conditions. This(More)
BACKGROUND Hip arthroscopy has become increasingly popular; however, little is known about revision hip arthroscopy. HYPOTHESIS Revision hip arthroscopy is associated with unaddressed femoroacetabular impingement. The purpose of this study was to describe reasons for revision hip arthroscopy. STUDY DESIGN Case series; Level of evidence, 4. METHODS(More)
PURPOSE The purpose of this study was to offer evidence of test-retest reliability and responsiveness of both the Hip Outcome Score (HOS) activities of daily living (ADL) and sports subscales. METHODS We included 126 subjects in this study. They had a mean age of 41 years (range, 13 to 80 years; SD, 16). All 126 subjects underwent hip arthroscopy with the(More)
Morphological and spatial abnormalities of the proximal femur and acetabulum have been recently recognized as causes of femoroacetabular impingement. During joint motion in hips with femoroacetabular impingement, abnormal bony contact occurs, and soft tissue structures (chondral and labral) often fail. Femoroacetabular impingement has been reported to be a(More)
BACKGROUND Hip injuries are common among professional hockey players in the National Hockey League (NHL). HYPOTHESIS Professional hockey players will return to a high level of function and ice hockey after arthroscopic labral repair and treatment of femoroacetabular impingement. STUDY DESIGN Case series; Level of evidence, 4. METHODS Twenty-eight(More)
The management of hip injuries in athletes has evolved significantly in the past few years with the advancement of arthroscopic techniques. The application of minimally invasive surgical techniques has facilitated relatively rapid returns to sporting activity in both recreational and elite athletes. Recent advancements in both hip arthroscopy and magnetic(More)
PURPOSE The purpose of this study was to examine the relationship between the size of cam lesions and the presence of cartilage damage, labral damage, or changes in range of motion in the hips with signs and symptoms of femoroacetabular impingement (FAI). METHODS Cross-table lateral radiographs were available for 102 consecutive patients presenting with(More)