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Walking on a compliant surface does not enhance kinematic gait asymmetries after unilateral total knee arthroplasty
Umeå University, Faculty of Medicine, Department of Community Medicine and Rehabilitation, Physiotherapy. Department of Physiotherapy, Faculty of Health and Social Sciences, Norwegian University of Science and Technology, Trondheim, Norway.
Umeå University, Faculty of Medicine, Department of Radiation Sciences.
Umeå University, Faculty of Medicine, Department of Surgical and Perioperative Sciences, Orthopaedics.
Umeå University, Faculty of Medicine, Department of Community Medicine and Rehabilitation. epartment of Physiotherapy, Faculty of Health and Social Sciences, Norwegian University of Science and Technology, Trondheim, Norway .
2016 (English)In: Knee Surgery, Sports Traumatology, Arthroscopy, ISSN 0942-2056, E-ISSN 1433-7347, Vol. 24, no 8, 2606-2613 p.Article in journal (Refereed) Published
Abstract [en]

PURPOSE: To investigate gait asymmetries and the effect of walking on compliant surfaces in individuals with unilateral total knee arthroplasty (TKA), hypothesizing that asymmetries would increase as an effect of the compliant surface.

METHODS: Individuals with unilateral TKA ~19 months post-operative (n = 23, median age 59 years) recruited from one orthopaedic clinic and age- and gender-matched healthy individuals without knee complaints (n = 23, median age 56 years) walked at comfortable speed on a hard surface and on a compliant surface. 3D kinematic analyses were made for knee and hip angles in sagittal and frontal planes, stance time, step length, and gait velocity.

RESULTS: Shorter stance time (p < 0.01) and less peak knee flexion (p < 0.001) at weight bearing acceptance was found in the prosthetic side compared with the contralateral side. Larger knee (p < 0.01) and hip (p < 0.001) adduction was found compared with healthy controls. Neither asymmetries between the prosthetic and the contralateral side nor differences compared with healthy controls were enhanced when walking on compliant surfaces compared with hard surfaces.

CONCLUSION: The TKA group adapted their gait to compliant surfaces similarly to healthy controls. Gait asymmetries in the TKA group observed on hard surface were not enhanced, and adduction in hip and knee joints did not increase further as an effect of walking on compliant surfaces. Thus, unfavourable knee joint loading did not increase when walking on a compliant surface. This implies that recommendations for walking on soft surfaces to reduce knee joint loading are not counteracted by increased gait asymmetries and unfavourable joint loading configurations.

LEVEL OF EVIDENCE: III.

Place, publisher, year, edition, pages
Springer, 2016. Vol. 24, no 8, 2606-2613 p.
Keyword [en]
Knee joint flexion, Knee joint adduction, Hip joint adduction, Prosthesis, Locomotion
National Category
Orthopedics
Identifiers
URN: urn:nbn:se:umu:diva-120342DOI: 10.1007/s00167-015-3931-yISI: 000380713600031PubMedID: 26708412OAI: oai:DiVA.org:umu-120342DiVA: diva2:928537
Note

First online: 26 December 2015

Available from: 2016-05-16 Created: 2016-05-16 Last updated: 2016-09-19Bibliographically approved

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Bjerke, JoakimÖhberg, FredrikNilsson, Kjell GStensdotter, Ann-Katrin
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PhysiotherapyDepartment of Radiation SciencesOrthopaedicsDepartment of Community Medicine and Rehabilitation
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Knee Surgery, Sports Traumatology, Arthroscopy
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