MRI-based assessment of hip joint translations |
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| Authors: | Benjamin Gilles Frank Kolo Christophe Nadia Magnenat-Thalmann Christoph D. Becker Sylvain R. Duc Jacques Menetrey Pierre Hoffmeyer |
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| Affiliation: | 1. Department of Neuroscience, Faculty of Medicine and Health Sciences, Erasmus MC, Dr. Molewaterplein 50, 3015 GE Rotterdam, The Netherlands;2. Research Team Collegium Magicum, Department of Physiotherapy, University of Physical Education, ul. Mikolowska 72, 40-065 Katowice, Poland;1. West Virginia University Hospitals, Department of Orthopaedics, WVU Healthcare Center for Joint Replacement, One Medical Center Drive, Morgantown, WV 26506, United States;2. Joint Implant Surgeons, Inc., 7277 Smith''s Mill Road, Suite 200, New Albany, OH 43054, United States;1. University of Florida, Department of Mechanical and Aerospace Engineering, PO Box 116250, Gainesville, FL 32611-6250, USA;2. Department of Orthopaedic Surgery, Asahikawa Medical University, Midorigaoka Higashi 2-1-1-1, Asahikawa 078-8510, Japan |
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| Abstract: | To better understand movement limitations and, to some extent, the pathogenesis of osteoarthritis, it is important to quantitatively measure femoroacetabular translations to assess if any joint subluxation occurs. In this paper, we aim at measuring hip joint displacements from magnetic resonance images (MRI) based on a surface registration technique. Because this measurement is related to the location of the hip joint center (HJC), we investigate and compare different HJC estimation approaches based on patient-specific 3D bone models. We estimate the HJC based on a simulated circumduction while minimizing inter-articular distance changes. Measurements of femoroacetabular translations during low amplitude abductions ( samples) and extreme flexions ( samples) in female professional dancers, which is a population potentially exposed to femoroactebaluar impingements, do not show any significant subluxation. |
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