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Updated: Feb 5, 2026

Methods for In Vivo Biomechanical Testing on Brachial Plexus in Neonatal Piglets
Published on: December 19, 2019
Result of modified Outerbridge-Kashiwagi procedure for elbow flexion contractures in brachial plexus birth injury
Andrew E Price1,2, Harvey Chim3, Herbert Valencia1
11 Brachial Plexus Program, Nicklaus Children's Hospital, Miami, FL, USA.
Abstract:
We report the results of ten consecutive patients who had correction of an elbow flexion contracture of greater than 30° in brachial plexus birth injury using a modified Outerbridge-Kashiwagi procedure. All patients had minimum 23-month follow-up. Pre- and post-operative elbow range of motion and DASH scores were recorded in all patients. The operative technique for the procedure and post-operative course is discussed. Surgery was supplemented by botulinum toxin injection into the biceps brachii muscle in most cases. The average age at surgery was 14 years 10 months. The initial plexus lesion was global in eight patients and upper in two. Pre-operative flexion contractures averaged 51° (range 35 to 60) and post-operative averaged 21° (range 15 to 30). Of these patients, one had no change in active flexion, four had loss of active flexion, and five had gain of active flexion. All ten patients were satisfied with their results and stated that they would recommend the procedure to other patients. Level of evidence: IV.
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