Journal of Rehabilitation Research & Development (JRRD)

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Volume 50 Number 3, 2013
   Pages 273 — 314

Abstract — Outcomes associated with the use of microprocessor-controlled prosthetic knees among individuals with unilateral transfemoral limb loss: A systematic review

Andrew B. Sawers, MSPO, CPO;1–2* Brian J. Hafner, PhD2

1Rehabilitation Research and Development Center of Excellence for Limb Loss Prevention and Prosthetic Engineering, Department of Veterans Affairs Puget Sound Health Care System, Seattle, WA; 2Department of Rehabilitation Medicine, University of Washington, Seattle, WA

Abstract — Microprocessor-controlled prosthetic knees (MPKs) have been developed as an alternative to non-microprocessor-controlled knees (NMPKs) to address challenges facing individuals with lower-limb loss. A body of scientific literature comparing MPKs and NMPKs exists but has yet to be critically appraised. Therefore, we conducted a systematic review to examine outcomes associated with the use of these interventions among individuals with transfemoral limb loss. A search of biomedical databases identified 241 publications, of which 27 met the inclusion and exclusion criteria and were reviewed for methodological quality and content. We developed 28 empirical evidence statements (EESs) in 9 outcome categories (metabolic energy expenditure, activity, cognitive demand, gait mechanics, environmental obstacle negotiation, safety, preference and satisfaction, economics, and health and quality of life) based on findings in the literature. The level of evidence supporting these EESs varied due to quantity, quality, and consistency of the results. EESs supported by a moderate level of evidence that noted significant differences between MPKs and NMPKs were derived in five of the nine outcome categories. The results from this review suggest that evidence exists to inform clinical practice and that additional research is needed to confirm existing evidence and better understand outcomes associated with the use of NMPKs and MPKs.

Key words: amputation, artificial limb, function, gait, knee, microprocessor, outcome, preference, rehabilitation, safety.


View HTML  ¦  View PDF  ¦  Contents Vol. 50, No. 3
This article and any supplementary material should be cited as follows:
Sawers AB, Hafner BJ. Outcomes associated with the use of microprocessor-controlled prosthetic knees among individuals with unilateral transfemoral limb loss: A systematic review. J Rehabil Res Dev. 2013;50(3):273–314.
http://dx.doi.org/10.1682/JRRD.2011.10.0187
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