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In vivo knee loading characteristics during activities of daily living as measured by an instrumented total knee replacement

Mündermann, Annegret and Dyrby, Chris O. and D'Lima, Darryl D. and Colwell, Clifford W. and Andriacchi, Thomas P.. (2008) In vivo knee loading characteristics during activities of daily living as measured by an instrumented total knee replacement. Journal of Orthopaedic Research, 26 (9). pp. 1167-1172.

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Official URL: http://edoc.unibas.ch/58510/

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Abstract

We examined the relationship between activity, peak load, medial to lateral load distribution, and flexion angle at peak load for activities of daily living. An instrumented knee prosthesis was used to measure knee joint force simultaneously with motion capture during walking, chair sit to stand and stand to sit, stair ascending and descending, squatting from a standing position, and golf swings. The maximum total compressive load at the knee was highest during stair ascending and descending and lowest during rising from a chair. Maximum total compressive load occurred at substantially different flexion angles ranging from 8.5 degrees during walking to 91.8 degrees during squatting. For all activities, total compressive load exceeded 2 times body weight, and for most activities 2.5 times body weight. Most activities placed a greater load on the medial compartment than the lateral compartment. Activities were grouped into three categories: high cycle loading (walk), high load (stair ascent, descent, and golf), and high flexion angle (chair sit to stand/stand to sit, and squat). The results demonstrate that the forces and motion sustained by the knee are highly activity-dependent and that the unique loading characteristics for specific activities should be considered for the design of functional and robust total knee replacements, as well as for rehabilitation programs for patients with knee osteoarthritis or following total knee arthroplasty.
Faculties and Departments:03 Faculty of Medicine > Bereich Operative Fächer (Klinik) > Bewegungsapparat und Integument > Traumatologie / Orthopädie (Jakob)
03 Faculty of Medicine > Departement Klinische Forschung > Bereich Operative Fächer (Klinik) > Bewegungsapparat und Integument > Traumatologie / Orthopädie (Jakob)
03 Faculty of Medicine > Departement Biomedical Engineering > Biomechanics and Biomaterials
UniBasel Contributors:Mündermann, Annegret
Item Type:Article, refereed
Article Subtype:Research Article
Publisher:Wiley
ISSN:0736-0266
e-ISSN:1554-527X
Note:Publication type according to Uni Basel Research Database: Journal article
Identification Number:
Last Modified:08 Dec 2020 15:47
Deposited On:08 Dec 2020 15:47

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