Simultaneous powering of forearm pronation and key pinch in tetraplegia using a single muscle-tendon unit

J. Fridén*, C. Reinholdt, A. Gohritz, W. J. Peace, S. R. Ward, R. L. Lieber

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

5 Scopus citations

Abstract

This study clinically assessed the concept that both thumb flexion and forearm pronation can be restored by brachioradialis (BR)-to-flexor pollicis longus (FPL) tendon transfer if the BR is passed dorsal to the radius. Six patients [two women and four men, mean age 32.3 years (SD 4.9, range 23-56)] underwent BR-to-FPL transfer dorsal to the radius and through the interosseous membrane (IOM). Lateral key pinch strength and pronation range of motion (ROM) were measured 1 year after surgery. A group of six patients [two women and four men, mean age 31.2 years (SD 5.0, range 19-52)] who underwent traditional palmar BR-to-FPL was included for comparison. Postoperative active pronation was significantly greater in the dorsal transfer group compared to the palmar group [149 (SD 6) and 75 (SD 3), respectively] and pinch strength was similar in the two groups [1.28 (SD 0.16) kg and 1.20 (SD0.21) kg, respectively]. We conclude that it is feasible to reconstruct lateral key pinch and forearm pronation simultaneously using only the BR motor.

Original languageEnglish (US)
Pages (from-to)323-328
Number of pages6
JournalJournal of Hand Surgery: European Volume
Volume37
Issue number4
DOIs
StatePublished - May 2012

Keywords

  • Tetraplegia
  • brachioradialis muscle
  • forearm pronation
  • tendon transfer surgery
  • thumb flexion

ASJC Scopus subject areas

  • Surgery

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