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Differences in myoelectric and body-powered upper-limb prostheses: Systematic literature review. Stephanie L. Carey, PhD; Derek J. Lura, PhD; M. Jason Highsmith, DPT, PhD, CP, FAAOP. Aim
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Differences in myoelectric and body-powered upper-limb prostheses: Systematic literature review Stephanie L. Carey, PhD; Derek J. Lura, PhD; M. Jason Highsmith, DPT, PhD, CP, FAAOP
Aim • To determine differences between myoelectric and body-powered prostheses to inform evidence-based clinical practice regarding prescription of these devices and training of users. • Relevance • Choice of myoelectric or body-powered upper-limb prostheses can be determined using factors including control, function, feedback, cosmesis, and rejection.
Method • Systematic review of literature • Search of 9 databases identified 462 unique publications. • 31 publications were ultimately included. • 11 empirical evidence statements were developed.
Results • Conflicting evidence found on relative functional performance of two types of prostheses. • Body-powered prostheses: • Advantages in durability, training time, frequency of adjustment, maintenance, and feedback. • Could benefit from improvements of control • Myoelectric prostheses: • Improve cosmesis and phantom-limb pain. • More accepted for light-intensity work.
Conclusion • Currently, evidence is insufficient to conclude that either system provides a significant general advantage. Prosthetic selection should be based on a patient’s individual needs and include personal preferences, prosthetic experience, and functional needs. This work demonstrates that there is a lack of emirical evidence regarding functional differences in upper-limb prostheses.