TY - JOUR
T1 - Reinnervated Split-Muscle Technique for Creating Additional Myoelectric Sites in an Animal Model
AU - Deslivia, Maria Florencia
AU - Lee, Hyun Joo
AU - Zulkarnain, Rizki Fajar
AU - Zhu, Bin
AU - Adikrishna, Arnold
AU - Jeon, In Ho
AU - Kim, Keehoon
N1 - Publisher Copyright:
© 2016 by the American Society of Plastic Surgeons.
PY - 2016/12/1
Y1 - 2016/12/1
N2 - Background: This study proposes a novel reinnervated split-muscle operation to create additional myoelectric sites as sources of command signals of myoelectric prostheses for enhanced dexterous hand-to-wrist motions. The aim of this study was to investigate the postprocedure electromyographic properties of the muscles as distinct myoelectric sites in a rat model. Methods: The reinnervated split-muscle group (n = 6) had the gastrocnemius muscle separated along its longitudinal axis and nerves transferred to each new muscle (peroneal nerve to lateral muscle head and tibial to medial one); the non-split-muscle group (n = 6) only had nerve transfers with its muscle intact. Functional testing was conducted after 10 weeks. The main parameter is the difference in mean electromyographic amplitude between the new muscles, with greater values indicating better separability. Results: After the reinnervated split-muscle procedure, there is a significant increase of the average ratio between two muscles compared with the control group, from 0.44 (range, 0.02 to 0.86) to 0.77 (range, 0.35 to 0.98) (p = 0.011). In addition, compared with the non-split muscle group, nerve transfer in the split-muscle group is more successful in reaching its intended target muscle. Conclusion: A reinnervated split-muscle procedure could be beneficial for acquiring a more precise and discrete command signal in upper limb amputees, thus enabling the creation of more dexterous prosthetic arm.
AB - Background: This study proposes a novel reinnervated split-muscle operation to create additional myoelectric sites as sources of command signals of myoelectric prostheses for enhanced dexterous hand-to-wrist motions. The aim of this study was to investigate the postprocedure electromyographic properties of the muscles as distinct myoelectric sites in a rat model. Methods: The reinnervated split-muscle group (n = 6) had the gastrocnemius muscle separated along its longitudinal axis and nerves transferred to each new muscle (peroneal nerve to lateral muscle head and tibial to medial one); the non-split-muscle group (n = 6) only had nerve transfers with its muscle intact. Functional testing was conducted after 10 weeks. The main parameter is the difference in mean electromyographic amplitude between the new muscles, with greater values indicating better separability. Results: After the reinnervated split-muscle procedure, there is a significant increase of the average ratio between two muscles compared with the control group, from 0.44 (range, 0.02 to 0.86) to 0.77 (range, 0.35 to 0.98) (p = 0.011). In addition, compared with the non-split muscle group, nerve transfer in the split-muscle group is more successful in reaching its intended target muscle. Conclusion: A reinnervated split-muscle procedure could be beneficial for acquiring a more precise and discrete command signal in upper limb amputees, thus enabling the creation of more dexterous prosthetic arm.
UR - http://www.scopus.com/inward/record.url?scp=84999633639&partnerID=8YFLogxK
U2 - 10.1097/PRS.0000000000002768
DO - 10.1097/PRS.0000000000002768
M3 - Article
C2 - 27879592
AN - SCOPUS:84999633639
SN - 0032-1052
VL - 138
SP - 997e-1010e
JO - Plastic and Reconstructive Surgery
JF - Plastic and Reconstructive Surgery
IS - 6
ER -