Related Experiment Video
Updated: Oct 26, 2025
Video Movement Analysis Using Smartphones ViMAS: A Pilot Study
Published on: March 14, 2017
Assessing the accuracy of measuring leg length discrepancy and genu varum/valgum using a markerless motion analysis
Robert J Hurley1, Martin S Davey1, Micheal Newell1
1Department of Trauma and Orthopaedics, National University of Ireland Galway, Galway, Ireland.
Aims:
Markerless motion analysis (MMA) systems are being used extensively in the area of sports medicine and physiotherapy. The purpose of this study was to compare leg length measurements (LLM) and varus/valgus knee measurements (VVM) performed clinically, radiologically and using MMA in patients being assessed for potential total knee arthroplasty (TKR).between mean LLM calculated clinically, radiologically and using MMA (all p < 0.05).
Discussion & Conclusion:
Discrepanices exist in LLM and VVM when evaluated using clinical, radiological and MMA modalities. Therefore, this study suggests that MMA alone may not be a suitable modality for assessment of patients for TKR, with a combination of two or more evaluation modalities recommended at present.
Level Of Evidence:
IV Case Series.
