Gait analysis methodology for the measurement of biomechanical parameters in total knee arthroplasties. A literature review

Publication date: March 2018 Source:Journal of Orthopaedics, Volume 15, Issue 1 Author(s): Georgios I. Papagiannis, Athanasios I. Triantafyllou, Ilias M. Roumpelakis, Panayiotis J. Papagelopoulos, George C. Babis Gait analysis using external skin markers provides scope for the study of kinematic and kinetic parameters shown on different total knee arthroplasties (TKA). Thus an appropriate methodology is of great importance for the collection and correlation of valid data. Calibration of equipment is of great importance before measurements, to assure accuracy. Force plates should be calibrated to 1080 Hz and optoelectronic cameras should use 120 Hz frequency, because of the nature of gait activity. Davis model which accurately defines the position of the markers is widely accepted and cited, for the gait analysis of TKA’s. To ensure the reproducibility of the measurement, a static trial at the anatomical position must be captured. Following, all acquisitions of dynamic data must be checked for consistency in walking speed, and abnormal gait style because of fatigue or distraction. To establish the repeatability of the measurement, this procedure must be repeated at a pre-defined number of 3–5 gait cycles. Anthropometric measurements should be combined with three-dimensional marker data from the static trial to provide positions of the joint’s center and define anatomical axes of total knee arthroplasty. Kinetic data should be normalized to bodyweight (BW) and ...
Source: Journal of Orthopaedics - Category: Orthopaedics Source Type: research