RESULTS OF TARGETED MUSCLE REINNERVATION IN INDIVIDUALS WITH A TRANSRADIAL AMPUTATION

Authors

  • Kristi Turner
  • Ann Simon
  • Laura Miller
  • Levi Hargrove
  • Todd Kuiken

Abstract

ABSTRACT Targeted Muscle Reinnervation (TMR) surgery has been performed for over a decade in individuals with high levels of limb loss (transhumeral and above) to improve their ability to operate a myoelectric prosthesis [1]. However, it is unknown if TMR can improve the ability to operate a multi-articulating hand in individuals with limb loss at the transradial level. The objective of this study was to evaluate whether TMR improves control of a multi-articulating hand using pattern recognition control. A secondary objective was to look at control of a multiarticulating hand with direct control and pattern recognition before TMR surgery (Pre-TMR). Eight individuals with transradial limb loss who had previously used myoelectric control were recruited. Participants were fit with a passive wrist and multiarticulating hand with eight available grips. Home trials were completed Pre-TMR using pattern recognition and direct control, and after TMR (Post-TMR) using pattern recognition control. Occupational therapy was given prior to each home trial for each control type: direct control Pre-TMR, pattern recognition Pre- TMR, and pattern recognition Post-TMR. Outcome measurements were performed at the end of each home trial. A statistically significant improvement was found for both the Jebsen-Taylor Hand Function Test and the Activities Measure for Upper Limb Amputees (AM-ULA), between direct control Pre-TMR and pattern recognition control Post-TMR.

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Published

2022-08-09

How to Cite

[1]
K. Turner, A. Simon, L. Miller, L. Hargrove, and T. Kuiken, “RESULTS OF TARGETED MUSCLE REINNERVATION IN INDIVIDUALS WITH A TRANSRADIAL AMPUTATION”, MEC Symposium, Aug. 2022.

Issue

Section

Myo Control and Sensory Feedback Implementations