Load applied on a bone-anchored transfemoral prosthesis: characterisation of a prosthesis : a pilot study

Frossard, Laurent A., Haggstrom, Eva, Hagberg, Kerstin, & Branemark, Rickard (2013) Load applied on a bone-anchored transfemoral prosthesis: characterisation of a prosthesis : a pilot study. Journal of Rehabilitation Research and Development, 50(5), pp. 619-634.

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Abstract

The objectives of this study were (A) to record the inner prosthesis loading during activities of daily living (ADL), (B) to present a set of variables comparing loading data, and (C) to provide an example of characterisation of two prostheses. The load was measured at 200 Hz using a multi-axial transducer mounted between the residuum and the knee of an individual with unilateral transfemoral amputation fitted with a bone-anchored prosthesis. The load was measured while using two different prostheses including a mechanically (PRO1) and a microprocessor controlled (PRO2) knee during six ADL. The characterisation of prosthesis was achieved using a set of variables split into four categories, including temporal characteristics, maximum loading, loading slopes and impulse. Approximately 360 gait cycles were analysed for each prosthesis. PRO1 showed a cadence improved by 19% and 7%, a maximum force on the long axis reduced by 11% and 19%, as well as an impulse reduced by 32% and 15% during descent of incline and stairs compared to PRO2, respectively. This work confirmed that the proposed apparatus and characterisation can reveal how changes of prosthetic components are translated into inner loading.

Impact and interest:

4 citations in Web of Science®
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ID Code: 83145
Item Type: Journal Article
Refereed: Yes
Keywords: Activities of daily living, Artificial limb, Bone-anchorage, Gait, Impulse, Transfemoral amputation, Osseointegration, Prosthetic knee unit
ISSN: 1938-1352
Subjects: Australian and New Zealand Standard Research Classification > ENGINEERING (090000) > BIOMEDICAL ENGINEERING (090300) > Rehabilitation Engineering (090305)
Divisions: Current > QUT Faculties and Divisions > Faculty of Health
Current > Institutes > Institute of Health and Biomedical Innovation
Current > Schools > School of Exercise & Nutrition Sciences
Copyright Owner: Copyright 2013 the authors
Deposited On: 07 Apr 2015 01:52
Last Modified: 11 Apr 2015 03:25

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