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Gait assessment as a functional outcome measure in total knee arthroplasty: a cross-sectional study

Rahman, J; Tang, Q; Monda, M; Miles, J; McCarthy, I; (2015) Gait assessment as a functional outcome measure in total knee arthroplasty: a cross-sectional study. BMC Musculoskeletal Disorders , 16 , Article 66. 10.1186/s12891-015-0525-2. Green open access

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Abstract

Background The aim of the study was to assess gait in total knee arthroplasty (TKA) patients, using a technique that can to be used on a routine basis in a busy orthopaedic clinic. Methods A total of 103 subjects were recruited: 29 pre-op TKA patients; 17 TKA patients at 8 weeks post-op; 28 TKA patients at 52 weeks post-op; and 29 age-matched controls. Inertial measurement units (IMUs) were used to assess gait. Limb segment angles, knee angle and temporal parameters of gait were calculated. Specific gait parameters were quantified, and data analysed using MANOVA and discriminant analysis. Results The gait of TKA patients as a group was only slightly improved at 12 months when compared with the pre-operative group, and both groups were significantly different to controls in several variables. Knee flexion range in stance was the most important variable in discriminating between patients and controls; knee flexion range in swing was the only variable that showed a significant difference between pre- and post-operative patients. When considered individually, only 1/29 patient was within the normal range for this variable pre-operatively, but 9/28 patients were within the normal range 12 months post-operatively. Conclusions Even after 12 months after surgery, many TKA patients have not improved their gait relative to pre-operative patients. Routine gait assessment may be used to guide post-operative rehabilitation, and to develop strategies to improve mobility of these patients.

Type: Article
Title: Gait assessment as a functional outcome measure in total knee arthroplasty: a cross-sectional study
Open access status: An open access version is available from UCL Discovery
DOI: 10.1186/s12891-015-0525-2
Publisher version: http://dx.doi.org/10.1186/s12891-015-0525-2
Language: English
Additional information: © 2015 Rahman et al.; licensee BioMed Central. This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly credited. The Creative Commons Public Domain Dedication waiver (http://creativecommons.org/publicdomain/zero/1.0/) applies to the data made available in this article, unless otherwise stated.
Keywords: Total knee arthroplasty, Motion analysis, Knee joint kinematics, Mobility
UCL classification: UCL > Provost and Vice Provost Offices
UCL > Provost and Vice Provost Offices > UCL BEAMS
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science > Dept of Civil, Environ and Geomatic Eng
URI: https://discovery.ucl.ac.uk/id/eprint/1470134
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