Abstract:
INTRODUCTION:The probability of spontaneous recovery of shoulder external rotation in neonatal brachial plexus injury (NBPI) is very low after the age of 18 months. We report the outcomes of double nerve transfers to restore active external rotation of the glenohumeral joint in children with NBPI after this age. PATIENTS AND METHODS:Retrospective analysis of 20 children of mean age of 23.8 months with a mean follow-up of 14.8 months. Inclusion criteria were: age > 18 months, full passive glenohumeral external rotation in abduction, and absence of severe joint deformity on MRI. The spinal accessory nerve was transferred to the infraspinatus motor branch and the long head of the triceps motor branch to the teres minor motor branch. Anterior shoulder release was associated when passive shoulder external rotation in adduction (pERADD) was <30° (n = 13, Group R vs. Group N-no release n = 7). Active shoulder elevation and external rotation in abduction (aERABD) of the glenohumeral joint were evaluated pre- and postoperatively. RESULTS:All children except two in Group R, recovered aERABD 4-6 months after surgery. Mean postoperative aERABD was 70 ± 32.4 and 82.9 ± 11.1° and shoulder elevation gain was 24.6 ± 22.2 and 27.1 ± 29.2° for Group R and N, respectively, without statistically significant differences. CONCLUSIONS:Late nerve transfers to external rotator muscles are effective in children with NBPI. This might be explained not only by muscle reinnervation, but also by the interruption of a previous co-contraction or developmental apraxia. LEVEL OF EVIDENCE:Therapeutic IV.
journal_name
Microsurgeryjournal_title
Microsurgeryauthors
Soldado Fdoi
10.1002/micr.30616subject
Has Abstractpub_date
2020-11-01 00:00:00pages
846-851issue
8eissn
0738-1085issn
1098-2752journal_volume
40pub_type
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