Extreme hip motion in professional ballet dancers: dynamic and morphological evaluation based on magnetic resonance imaging

Kolo, Frank; Charbonnier, Caecilia; Pfirrmann, Christian W. A.; Duc, Sylvain R.; Lübbeke, Anne; Duthon, Victoria B.; Thalmann, Nadia Magnenat; Hoffmeyer, Pierre; Ménétrey, Jacques; Becker, Christoph

doi:10.1007/s00256-012-1544-9

Cited by 87 publications

(110 citation statements)

References 19 publications

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“…Extreme hip motion in end positions may result in a "pincerlike" impingement even with a normal bony morphology (101). MR imaging of elite female ballet dancers in the splits position showed a subluxation of the femoral head in this extreme position (101). Such incongruence in extreme hip positions may increase mechanical stress to the cartilage and labrum (101).…”

Section: State Of the Art: Hip Imaging In Athletesmentioning

confidence: 99%

“…Extreme hip motion.-Sports such as high-level martial arts, gymnastics, and ballet need a high range of motion in the hip. Extreme hip motion in end positions may result in a "pincerlike" impingement even with a normal bony morphology (101). MR imaging of elite female ballet dancers in the splits position showed a subluxation of the femoral head in this extreme position (101).…”

Section: State Of the Art: Hip Imaging In Athletesmentioning

confidence: 99%

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Hip Imaging in Athletes: Sports Imaging Series

et al. 2016

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Hip or groin pain in athletes is common and clinical presentation is often nonspecific. Imaging is a very important diagnostic step in the work-up of athletes with hip pain. This review article provides an overview on hip biomechanics and discusses strategies for hip imaging modalities such as radiography, ultrasonography, computed tomography, and magnetic resonance (MR) imaging (MR arthrography and traction MR arthrography). The authors explain current concepts of femoroacetabular impingement and the problem of high prevalence of cam-and pincer-type morphology in asymptomatic persons. With the main focus on MR imaging, the authors present abnormalities of the hip joint and the surrounding soft tissues that can occur in athletes: intraarticular and extraarticular hip impingement syndromes, labral and cartilage disease, microinstability of the hip, myotendinous injuries, and athletic pubalgia. Hip or groin pain in athletes is common and clinical presentation is often nonspecific. Imaging is a very important diagnostic step in the work-up of athletes with hip pain. This review article provides an overview on hip biomechanics and discusses strategies for hip imaging modalities such as radiography, ultrasonography, computed tomography, and magnetic resonance (MR) imaging (MR arthrography and traction MR arthrography). The authors explain current concepts of femoroacetabular impingement and the problem of high prevalence of cam-and pincer-type morphology in asymptomatic persons. With the main focus on MR imaging, the authors present abnormalities of the hip joint and the surrounding soft tissues that can occur in athletes: intraarticular and extraarticular hip impingement syndromes, labral and cartilage disease, microinstability of the hip, myotendinous injuries, and athletic pubalgia. After reading the article and taking the test, the reader will be able to:n Describe biomechanical implications of torsional malalignment and other atypical forms of hip impingement n Describe the most common MR imaging findings in femoroacetabular impingement and identify anatomic variants n Describe imaging characteristics of a Morel-Lavallée lesion and identify the anatomic compartment where this lesion typically occurs n Identify common stress fractures around the hip joint in athletes and discuss potential complications n Describe features of myotendinous injuries around the hip n Describe the anatomic relationship of the sacrotuberous ligament and the origin of the hamstring tendons n Describe the anatomic structures involved in an athletic pubalgia Accreditation and Designation Statement The RSNA is accredited by the Accreditation Council for Continuing Medical Education (ACCME) to provide continuing medical education for physicians. The RSNA designates this journal-based SA-CME activity for a maximum of 1.0 AMA PRA Category 1 Credit ™ . Physicians should claim only the credit commensurate with the extent of their participation in the activity. Disclosure StatementThe ACCME requires that the RSNA, as an accredited prov...

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Section: State Of the Art: Hip Imaging In Athletesmentioning

confidence: 99%

Section: State Of the Art: Hip Imaging In Athletesmentioning

confidence: 99%

Hip Imaging in Athletes: Sports Imaging Series

et al. 2016

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“…The morphological analysis included the following radiographic criteria: acetabular depth (19), acetabular version (17), lateral center edge (CE) angle (20), anterior CE angle (20), femoral head-neck alpha angle (21), neck-shaft angle (22) and femoral neck anteversion (22). Measurements were performed on the MRI scans in accordance with the methods cited in the mentioned references.…”

Section: Mr Imaging and Bone Model Reconstructionmentioning

confidence: 99%

“…A flexible surface coil was used and the images were acquired in the supine position. The imaging protocol was issued from a previous study (17) that allowed for the acquisition of images suitable for both radiologic analysis and bone model reconstruction. The region of interest of MRI datasets extended from the L4 vertebra to the knee.…”

Section: Mr Imaging and Bone Model Reconstructionmentioning

confidence: 99%

Analysis of Hip Range of Motion in Everyday Life: A Pilot Study

et al. 2014

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Patients undergoing total hip arthroplasty are increasingly younger and have a higher demand concerning hip range of motion. To date, there is no clear consensus as to the amplitude of the “normal hip” in everyday life. It is also unknown if the physical examination is an accurate test for setting the values of true hip motion. The purpose of this study was: 1) to precisely determine the necessary hip joint mobility for everyday tasks in young active subjects to be used in computer simulations of prosthetic models in order to evaluate impingement and instability during their practice; 2) to assess the accuracy of passive hip range of motion measurements during clinical examination. A total of 4 healthy volunteers underwent Magnetic Resonance Imaging and 2 motion capture experiments. During experiment 1, routine activities were recorded and applied to prosthetic hip 3D models including nine cup configurations. During experiment 2, a clinical examination was performed, while the motion of the subjects was simultaneously captured. Important hip flexion (mean range 95°-107°) was measured during daily activities that could expose the prosthetic hip to impingement and instability. The error made by the clinicians during physical examination varied in the range of ±10°, except for flexion and abduction where the error was higher. This study provides useful information for the surgical planning to help restore hip mobility and stability, when dealing with young active patients. The physical examination seems to be a precise method for determining passive hip motion, if care is taken to stabilise the pelvis during hip flexion and abduction.

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“…3,5 The resulting demands, which stretch the borders of physiologic motion, may explain why the intra-articular pathology described in dancers may differ from that found in other individuals. 5,15,21 There is still a lot more that research in orthopaedic sports medicine can tell us about the human hip. Crosssectional reports documenting the prevalence of various morphologies in dance and competitive sports are interesting, but longitudinal studies of these subjects are needed to determine the prognostic implications of these findings.…”

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confidence: 99%