The Journal of Bone and Joint Surgery (American) 86:1485-1490 (2004)
© 2004 The Journal of Bone and Joint Surgery, Inc.
Transfer of Fascicles from the Ulnar Nerve to the Nerve to the Biceps in the Treatment of Upper Brachial Plexus Palsy
Frédéric Teboul, MD, MS1,
Raoul Kakkar, MD2,
Nordine Ameur, MD2,
Jeans-Yves Beaulieu, MD2 and
Christophe Oberlin, MD2
1 10, rue d'Alsace, 92300, Levallois-Perret, France. E-mail address:
f_teboul{at}hotmail.com
2 Orthopaedic Surgery Department, Unit of Upper Limb, Hand and Nerve Surgery,
Bichat Hospital, 46, rue Henri Huchard, 75018, Paris, Cedex 18, France
Investigation performed at Bichat Hospital, Paris, France
The authors did not receive grants or outside funding in support of their
research or preparation of this manuscript. They did not receive payments or
other benefits or a commitment or agreement to provide such benefits from a
commercial entity. No commercial entity paid or directed, or agreed to pay or
direct, any benefits to any research fund, foundation, educational
institution, or other charitable or nonprofit organization with which the
authors are affiliated or associated.
Background: The transfer of one or more ulnar nerve fascicles to the
nerve to the biceps can restore elbow flexion in patients with upper brachial
plexus palsy. The purposes of the present retrospective study were to evaluate
the results of this procedure, to measure the delay in reinnervation of the
biceps muscle, and to define the indications for a secondary Steindler
flexorplasty.
Methods: Thirty-two patients with an upper nerve-root brachial
plexus injury were reviewed at an average of thirty-one months after the nerve
fascicle transfer. The average age of the patients was twenty-eight years. The
average time between the injury and the operation was nine months. Patients
were evaluated with regard to reinnervation of the biceps, ulnar nerve
function, elbow flexion strength, and grip strength.
Results: The average time required for reinnervation of the biceps
after nerve fascicle transfer was five months. No motor or sensory deficits
related to the ulnar nerve were noted clinically. The average grip strength at
the time of the last follow-up was 25 kg (an improvement of 9 kg compared with
the preoperative value). After the nerve transfer, twenty-four patients
achieved grade-3 elbow flexion strength or better according to the grading
system of the Medical Research Council. A Steindler flexorplasty was performed
as a secondary procedure in ten patients with persistent grade-3 flexor
strength or worse. In eight of these cases, elbow flexion strength improved
after nerve transfer and flexorplasty. Overall, thirty of the thirty-two
patients achieved a good result (grade-4 strength) or a fair result (grade-3
strength).
Conclusions: We recommend this procedure for brachial plexus
injuries involving the C5-C6 or C5-C6-C7 nerve roots. This procedure spares
the C5 nerve root and other nerves for grafting or transfer elsewhere. A
secondary Steindler flexorplasty is indicated for patients who have persistent
grade-3 elbow flexion strength or worse for at least twelve months after nerve
fascicle transfer.
Level of Evidence: Therapeutic study, Level IV (case
series [no, or historical, control group]). See Instructions to Authors for a
complete description of levels of evidence.

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[Abstract]
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