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CC BY-NC-ND 4.0 · Indian J Plast Surg 2020; 53(02): 254-259
DOI: 10.1055/s-0040-1716186
Original Article

Intercostal Nerve Transfers to the Musculocutaneous–A Reliable Nerve Transfer for Restoration of Elbow Flexion in Birth-Related Brachial Plexus Injuries

Alex Muset Lara
1   Orthopaedic Muset Institute, Barcelona, Spain
,
Anil Bhatia
2   Department of Brachial Plexus Surgery, Deenanath Mangeshkar Hospital, Erandwane, Opposite Mehendale Garage, Pune, India
,
Jorge Clifton Correa
3   Department of Hand and Upper Limb Surgery, Hospital Real San Jose, Universidad Autónoma De Guadalajara and Universidad de Coahuila Torreón, Mexico
,
Tarek Abdalla El Gammal
4   Department of Orthopaedic, Hand and Microsurgery, Assiut University, Assiut, Egypt
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Abstract

Introduction There is consensus on the need for early microsurgical reconstruction in birth palsies involving three or more roots, that is, extensive partial palsies and total palsies. The fundamental principles of these operations are complete exploration and judicious use of the ruptured stumps by nerve grafting to suitable distal targets. The frequent observation of root avulsions in such cases makes it imperative to look for extraplexual nerve donors for some functions. Intercostal nerves are readily available in such patients.

Materials and Methods This is a study of 50 patients of extensive partial and total birth palsies operated upon by the senior author between 1995 and 2010. These included 33 patients with total palsies, 16 patients with near total palsies, and one patient with C56 deficit (operated upon more than 20 years ago). These children were all operated upon between 3 and 6 months of age, except for two patients in whom surgery was delayed till a year due to the phrenic nerve deficit noted at birth. Four intercostal nerves were transferred to the musculocutaneous nerve (MCN) by direct approximation with fibrin glue.

Results No respiratory complication was noted from the intercostal harvest. The follow-up ranged from 8 to 20 years (mean 10 years). As many as 48 of the 50 patients regained fully independent elbow flexion. In two cases, the procedure failed completely and had to be salvaged with a free functioning muscle transfer and reuse of the intercostal nerves.

Conclusion Intercostal nerve transfers can be relied upon for restoration of elbow flexion in birth palsies. The ruptured roots can then be utilized for augmenting shoulder function in partial palsies or for hand function in total palsies.

Keywords

birth palsies - elbow flexion - intercostal nerve transfers


Publication History

Article published online:
30 August 2020

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