Association of hip and pelvic geometry with tibiofemoral osteoarthritis: Multicenter Osteoarthritis Study (MOST)
Adam BoissonneaultJ.A. LynchBurton L. WiseNeil A. SegalK.D. GrossDavid W. MurrayMichael C. NevittHemant Pandit
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Pelvic tilt
Femoroacetabular Impingement
Femoroacetabular Impingement
Hip pain
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Femoroacetabular impingement is a common pathologic disorder of the hip that causes pain and has been implicated in the development of early osteoarthritis in young adults. This disorder includes 2 different subtypes: cam impingement and pincer impingement. When nonsurgical treatment methods fail, surgical options are indicated. These options have been increasingly investigated over recent years and show promising results. Several surgical techniques have been described, including surgical dislocation of the hip, mini-open procedures, hip arthroscopy, and periacetabular osteotomies. Nevertheless, the preferred mode of surgical management of femoroacetabular impingement remains a source of controversy. Only short-term and midterm outcome data are available regarding the efficacy of these surgical techniques. This review details 5 approaches for surgical management of femoroacetabular impingement: open surgical dislocation, a combined arthroscopic and open approach, hip arthroscopy, a mini-open anterior approach, and periacetabular osteotomy. It focuses specifically on surgical technique, outcomes, and their efficacy in treatment of femoroacetabular impingement.
Femoroacetabular Impingement
Hip Arthroscopy
Hip pain
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Sports medicine
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Femoroacetabular Impingement
Hip Arthroscopy
Sports medicine
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Lateral pillar classification has proven to be useful for the prognosis and treatment of patients with Legg-Calvé-Perthes disease. Most patients progress to skeletal maturity with some kind of morphologic alteration. Femoroacetabular impingement is a condition that results in early osteoarthrosis. The objective of this study was to determine whether there is a correlation between the initial lateral pillar classification and the presence of final femoroacetabular impingement.A retrospective review of 61 patients with Legg-Calvé-Perthes disease was conducted (68 hips); they were classified into three groups according to the lateral pillar classification. At the time of skeletal maturity the radiographic presence of femoroacetabular impingement was determined and the correlation between both variables was analyzed.The use of the lateral pillar classification resulted in seven hips considered as type A, 37 as type B, and 24 as type C. Three of the type A hips had radiographic findings of cam femoroacetabular impingement, three of pincer femoroacetabular impingement, and one of mixed femoroacetabular impingement. Among type B hips, radiographic data of cam femorocetabular impingement were found in17, of pincer femoroacetabular impingement in 12, and of mixed femoroacetabular impingement in 10. Twenty-three of the type C hips had radiographic data of cam femoroacetabular impingement, 15 of pincer femoroacetabular impingement, and 15 of mixed femoroacetabular impingement.Patients with Legg-Calvé-Perthes disease have a directly proportional relationship between the initial lateral pillar classification and subsequent femoroacetabular impingement.
Femoroacetabular Impingement
Pillar
Legg-Calve-Perthes disease
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Surgery for femoroacetabular impingement (FAI) has been advocated for correction of cam and pincer hip joint morphology. Surgery for FAI was first pioneered by Myers et al, who surgically treated FAI by open dislocation. Arthroscopy was then introduced in 2005 by Sampson. Arthroscopy has continued to develop since then, with the intent of providing pain relief and improving function in patients with FAI. This Viewpoint discusses the escalating popularity of FAI surgery, the widespread acceptance of this relatively new surgical procedure, and next steps for determination of who benefits from this treatment. J Orthop Sports Phys Ther 2016;46(6):406–408. doi:10.2519/jospt.2016.0605
Femoroacetabular Impingement
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Hip pain
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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 contributor to early-onset joint degeneration. Ganz et al have described good midterm success with an open surgical dislocation approach to reconstruct normal joint clearance. The purpose of this report is to discuss relevant literature and describe an arthroscopic approach to treat femoroacetabular impingement. This approach has particular relevance in high-demand patients, particularly in athletes seeking to return to high-level sport.
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Femoroacetabular impingement is a very important complication after operation for femoral neck fracture,which causes hip pain and osteoarthritis.In this article,two cases of femoroacetabular impingement after internal fixation for femoral neck fracture are reported,and the related diagnosis and therapy are discussed.
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Femoroacetabular Impingement
Etiology
Hip Arthroscopy
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The aim of our study was to investigate whether placing of the femoral component of a hip resurfacing in valgus protected against spontaneous fracture of the femoral neck. We performed a hip resurfacing in 20 pairs of embalmed femora. The femoral component was implanted at the natural neck-shaft angle in the left femur and with a 10 degrees valgus angle on the right. The bone mineral density of each femur was measured and CT was performed. Each femur was evaluated in a materials testing machine using increasing cyclical loads. In specimens with good bone quality, the 10 degrees valgus placement of the femoral component had a protective effect against fractures of the femoral neck. An adverse effect was detected in osteoporotic specimens. When resurfacing the hip a valgus position of the femoral component should be achieved in order to prevent fracture of the femoral neck. Patient selection remains absolutely imperative. In borderline cases, measurement of bone mineral density may be indicated.
Hip resurfacing
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