Restoration of Elbow Flexion With a Free Functional Gracilis Muscle Transfer in an Arthrogrypotic Patient Using a Motor Nerve to Pectoralis Major

Hand (N Y). 2020 Sep;15(5):739-743. doi: 10.1177/1558944720923412. Epub 2020 Jun 6.

Abstract

Background: Patients with arthrogryposis may exhibit inability to flex the elbow. A free functional gracilis muscle transfer (FFGMT) can be used to restore elbow flexion. In our search of the available literature, we have not seen any descriptions of using a motor branch to the pectoralis major as a donor nerve to establish elbow flexion. Methods: We performed an FFGMT for restoration of elbow flexion in an arthrogrypotic patient with no active elbow flexion, who had a Medical Research Council (MRC) muscle grade of 0. Results: We report our 4.5-year outcomes. After undergoing an FFGMT for elbow flexion, our patient was able to gain an MRC grade 4 and achieve an arc of motion of 25° to 140°. Conclusion: An FFGMT for elbow flexion may be performed successfully using a motor branch to the pectoralis major.

Keywords: arthrogryposis; elbow flexion; free functional muscle transfer; free tissue transfer; gracilis; microsurgery; microvascular; specialty.

MeSH terms

  • Arthrogryposis*
  • Elbow / surgery
  • Gracilis Muscle*
  • Humans
  • Pectoralis Muscles / surgery
  • Range of Motion, Articular