![]() ![]() ![]() This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.ĭata Availability: All relevant data are within the paper and its Supporting Information files.įunding: The development was financially supported by RMS foundation (Bettlach, Switzerland), Philips Medical Systems (Switzerland), Medacta International SA (Castel San Pietro, Switzerland) and the Commission for Technology and Innovation (Bern, Switzerland).Ĭompeting interests: The authors have declared that no competing interests exist. Received: Accepted: SeptemPublished: October 9, 2017Ĭopyright: © 2017 List et al. PLoS ONE 12(10):Įditor: John Leicester Williams, University of Memphis, UNITED STATES (2017) A moving fluoroscope to capture tibiofemoral kinematics during complete cycles of free level and downhill walking as well as stair descent. ![]() Since control of the system is based on real-time feedback of a wire sensor, the system is not dependent on repeatable gait patterns, but is rather able to capture pathological motion patterns with low inter-trial repeatability.Ĭitation: List R, Postolka B, Schütz P, Hitz M, Schwilch P, Gerber H, et al. ![]() By measuring ten total knee arthroplasty subjects, we demonstrate that it is possible to maintain the knee to within 1.8 ± 1.4 cm vertically and 4.0 ± 2.6 cm horizontally of the centre of the intensifier throughout full cycles of activities of daily living. Here, we assess the ability of the system to keep the knee in the field of view of the image intensifier. To avoid the limitations of a static image intensifier, a moving fluoroscope has been presented as a standalone system that allows tracking of the knee during multiple complete cycles of level- and downhill-walking, as well as stair descent, in combination with the synchronous assessment of ground reaction forces and whole body skin marker measurements. However, due to the limitation in the field of view, most systems can only assess knee kinematics during highly restricted movements. Videofluoroscopy has been shown to provide essential information in the evaluation of the functionality of total knee arthroplasties. ![]()
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