Background: Early hip osteoarthritis in dancers could be explained by femoroacetabular impingements. However, there is a lack of validated noninvasive methods and dynamic studies to ascertain impingement during motion. Moreover, it is unknown whether the femoral head and acetabulum are congruent in typical dancing positions.
Hypothesis: The practice of some dancing movements could cause a loss of hip joint congruence and recurrent impingements, which could lead to early osteoarthritis.
Study Design: Descriptive laboratory study.
Methods: Eleven pairs of female dancer's hips were motion captured with an optical tracking system while performing 6 different dancing movements. The resulting computed motions were applied to patient-specific hip joint 3-dimensional models based on magnetic resonance images. While visualizing the dancer's hip in motion, the authors detected impingements using computer-assisted techniques. The range of motion and congruence of the hip joint were also quantified in those 6 recorded dancing movements.
Results: The frequency of impingement and subluxation varied with the type of movement. Four dancing movements (développé à la seconde, grand écart facial, grand écart latéral, and grand plié) seem to induce significant stress in the hip joint, according to the observed high frequency of impingement and amount of subluxation. The femoroacetabular translations were high (range, 0.93 to 6.35 mm). For almost all movements, the computed zones of impingement were mainly located in the superior or posterosuperior quadrant of the acetabulum, which was relevant with respect to radiologically diagnosed damaged zones in the labrum. All dancers' hips were morphologically normal.
Conclusion: Impingements and subluxations are frequently observed in typical ballet movements, causing cartilage hypercompression. These movements should be limited in frequency.
Clinical Relevance: The present study indicates that some dancing movements could damage the hip joint, which could lead to early osteoarthritis.
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http://dx.doi.org/10.1177/0363546510386002 | DOI Listing |
Front Pharmacol
January 2025
Department of Orthopedics, West China Hospital, Sichuan University, Chengdu, Sichuan, China.
Background: The debate continues on whether combining core decompression (CD) with regenerative therapy provides a more effective treatment for early femoral head necrosis than CD alone. This systematic review and meta-analysis endeavored to assess its efficacy.
Methods: We systematically searched PubMed, Web of Science, and Cochrane Library through July 2024 for RCTs and cohort studies evaluating the impact of core decompression (CD) with regenerative therapy versus CD alone in early-stage osteonecrosis (ARCO I, II or IIIa or Ficat I or II) of the femoral head (ONFH).
J Hip Preserv Surg
December 2024
Hip and Knee Adult Reconstruction Department, Instituto Nacional de Rehabilitación Luis Guillermo Ibarra, Calzada México-Xochimilco No. 289 Colonia Arenal de Guadalupe Delegación, Tlalpan C.P., Ciudad de México 14389, México.
Femoroacetabular impingement syndrome (FAIS) is a common condition of the hip that can cause significant damage to the joint, leading to degeneration and osteoarthritis. FAIS constitutes an abnormal and dynamic contact between the femoral head-neck junction and the acetabular rim, resulting from altered bone morphology at one or both sites. Repetitive trauma at the site of impingement generates progressive damage to the acetabular labrum, chondrolabral junction, and articular cartilage.
View Article and Find Full Text PDFAnn Geriatr Med Res
January 2025
Department and Research Institute of Rehabilitation Medicine, Yonsei University College of Medicine, Seoul, Korea.
Background: A nationwide Rehabilitation at Home Care Pilot Program for patients undergoing lower extremity orthopedic surgeries has been ongoing since 2020. The program was designed to improve clinical outcomes through early mobilization and rehabilitation after discharge. This study aimed to analyze the interim data to assess its effectiveness and suggest improvements, particularly for older patients who are more vulnerable compared to younger patients.
View Article and Find Full Text PDFBMC Prim Care
January 2025
Faculty of Medine, University of Jordan, Jordan University Hospital, Amman, Jordan.
Background: Musculoskeletal (MSK) conditions, such as back pain and joint disorders, are common globally and significantly burden healthcare systems. Family medicine clinics serve as the first point of care, requiring providers to manage diverse MSK issues and address gender-specific differences, especially in regions with limited resources, like the Middle East. This study evaluates MSK management, gender differences, and patient perceptions in Jordanian family medicine clinics, aiming to improve care strategies and outcomes in similar settings.
View Article and Find Full Text PDFJ Orthop Sci
January 2025
Department of Medicine for Orthopaedics and Motor Organ, Juntendo University Graduate School of Medicine, 2-1-1, Hongo, Bunkyo-ku, Tokyo 113-0033, Japan; Department of Orthopaedics, Faculty of Medicine, Juntendo University, 2-1-1, Hongo, Bunkyo-ku, Tokyo 113-0033, Japan.
Background: Although hearing loss in orthopaedic surgeons from exposure to hammering sounds have been previously reported, there are no reports on the noise environment during total hip arthroplasty (THA) in Japan. The aim of this study was to investigate the sound level generated by cementless THA in Japan, and to discuss the broader sound environment within this space.
Methods: 94 cementless THAs (94 patients with informed consent) performed by four surgeons were included.
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