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Early results of a continuing study of the electrical activity of muscles after transfer,
with an integrated system of electromyographic and video tape recording, recorded
motions of the simple voluntary type, mostly with isometric contractions. A triceps-to-biceps
transfer showed activity in the new motion one day after operation. A partial transfer
of the pectoralis major (Clark) demonstrated isolated activity of the transfer after
one year. A superficialis transfer to clawed ring and little fingers functioned to
flex the metacarpophalangeal joints and to extend the interphalangeal joints. Transfer
of superficialis to finger extensors showed that antagonists acted to provide unresisted
extension. The original phasic activity of a muscle was retained in a study of extensor
indicis proprius to thumb for opposition. New phasic activity was shown in transfer
of extensor carpi radialis longus to digital flexors. In two instances of transfer
of spastic wrist flexors to wrist extensors, the original phasic activity was retained,
but in only one was the function assumed by the transfer even though wrist extension
was improved.
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References
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Article info
Publication history
Received in revised form:
July 2,
1976
Received:
January 14,
1976
Identification
Copyright
© 1976 American Society for Surgery of the Hand. Published by Elsevier Inc. All rights reserved.
