Observational study of people with complete hand amputation using a multigrip myoelectric prosthesis after using a standard myoelectric prosthesis
Marc Marty, Nathalie de Hesselle, Mireille Grenier, Anthony Palacio, Michèle Timsit, Amelie Touillet, Frédéric Charlate, Stephane Vigier, Emilie Leblong, Yoann Ronzi, Léo Borrini, Emilie Braley, Patrice Schumacker, Simona Audemar, Thierry Jacob-Chia, Estelle Elie, Juliette Milcamps, Renaud Urbinelli, Isabelle LoiretBackground:
Clinical evidence substantiating the advantages multi-grip myoelectric hand prosthesis over conventional myoelectric hand prosthesis in daily life remains inconclusive.
Objectives:
The study aimed to assess the efficacy of using a multi-grip myoelectric hand prosthesis after utilizing a conventional myoelectric hand prosthesis.
Study Design:
A before-and-after, multi-center, observational study included adults with complete hand amputation using a standard myoelectric hand prosthesis for more than 4 weeks.
Methods:
Patients were assessed at T0 with their standard myoelectric hand prosthesis, after a 4 to 6 weeks training and trial period with a multi-grip myoelectric hand prosthesis (T1) and then after an 8 to 10 weeks period of wearing (T2). The primary outcome measure was the change of upper limb function via the Orthotics and Prosthetics Users' Survey (OPUS). Results: twenty-two participants were prescribed a definitive multi-grip hand myoelectric prosthesis. On average, the duration since amputation was 6.5 ± 11.4 years. Traumatic causes accounted for 77.3% (17/22) of the cases. The upper limb function component score of the OPUS exhibited a mean increase of 6.2 ± 10.8 points (95% CI 1.5 to 11.0) from T0 to T2. Statistically significant improvements were also noted in the quality-of-life component of OPUS, the Quick DASH score, and overall satisfaction with prosthesis.
Conclusions:
In this study, the transition from using daily living standard myoelectric hand prosthesis to using a multi-grip myoelectric hand prosthesis yielded improvements in functionality, quality of life, and overall satisfaction (self-drafted) among individuals with complete hand amputation.