A reference method for the evaluation of femoral head joint center location technique based on external markers
Article dans une revue avec comité de lecture
Accurate localization of joint centers is essential in movement analysis. However, joint centers cannot be directly palpated and alternative methods must be used. To assess the relative merits of these methods, a medical image based reference should be used. The EOS1 system, a new low dose bi-planar X-rays imaging technique may be considered. The aim of this study was to evaluate the accuracy of hip joint center (HJC) localization using the EOS1 system. Seventeen healthy young adults participated in the study. Femoral heads and pelvic external markers were localized using the EOS1 system and the HJCs were expressed in the movement analysis coordinate system. Results showed that external marker localization was reliable within 0.15 mm for trained assessors. Mean accuracy for HJC localization was 2.9 mm (SD: 1.3, max: 6.2). The EOS based method therefore appeared reliable and may be used for femoral head localization or as a reference to assess the accuracy of other methods for HJC localization.
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Article dans une revue avec comité de lectureHAUSSELLE, Jerome; ASSI, Ayman; EL HELOU, Amine; JOLIVET, Erwan; PILLET, Hélène; DION, Elisabeth; BONNEAU, Dominique; SKALLI, Wafa (Informa UK Limited, 2012)Accurate estimation of joint loads implies using subject-specific musculoskeletal models. Moreover, as the lines of action of the muscles are dictated by the soft tissues, which are in turn influenced by gravitational ...
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On the use of knee functional calibration to determine the medio-lateral axis of the femur in gait analysis: Comparison with EOS biplanar radiographs as reference Article dans une revue avec comité de lectureSAURET, Christophe; PILLET, Hélène; SKALLI, Wafa; SANGEUX, Morgan (Elsevier, 2016)Accurate calibration of the medio-lateral axis of the femur is crucial for clinical decision making based on gait analysis. This study proposes a protocol utilizing biplanar radiographs to provide a reference medio-lateral ...