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Case report of modified Box and Blocks test with motion capture to measure prosthetic function

Case report of modified Box and Blocks test with motion capture to measure prosthetic function. Jacqueline S. Hebert, MD, FRCPC; Justin Lewicke, MBA, BSc(Kin). Aim

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Case report of modified Box and Blocks test with motion capture to measure prosthetic function

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  1. Case report of modified Box and Blocks test with motion capture to measure prosthetic function Jacqueline S. Hebert, MD, FRCPC; Justin Lewicke, MBA, BSc(Kin)

  2. Aim • Quantify compensatory movement and simultaneous control in subject using different prostheses before and after targeted muscle reinnervation (TMR) surgery. • Relevance • Upper-limb prosthetic designs and treatment interventions are expanding faster than ability to measure their effectiveness. • Box and Blocks test is commonly used to measure manual dexterity, but has not been validated with upper-limb prosthetic users, or used in combination with motion analysis to look at quality of motion.

  3. Method • Single case study. • Data were collected: • Pre-TMR surgery with body-powered prosthesis. • 6 mo after being fitted with TMR myoelectric prosthesis. • Box and Blocks test was modified for cyclical motion within motion capture laboratory.

  4. Results • With TMR myoelectric prosthesis: • Subject could simultaneously activate hand and elbow. • Slower task performance. • Improved elbow flexion. • Less trunk compensatory motion.

  5. Conclusion • Report presents a potential method to quantify quality of motion and compensatory movements of prosthetic users. • With further study, this test procedure could be a useful outcome measure for future standardized assessments of upper-limb prosthetic function.

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