Abstract

BackgroundThe purpose of this study was to compare the functional results of latissimus dorsi (LD) tendon transfer with those of subscapularis (SS) muscle release versus sliding.MethodsFifty-six patients with internal rotation contracture and external rotation (ER) weakness as sequelae of Erb’s palsy were included in the study. Of the patients, 24 were included in group 1 (11 boys and 13 girls), with a mean age of 2 years 8 months (range 1.5–5 years) and a follow-up period of 62 months (range 38–68 months). The patients in group 1 underwent LD tendon transfer, with internal rotation contracture and SS release procedures. Thirty-two patients were included in group 2 (18 boys and 14 girls), with a mean age of 2 years 6 months (range 1.5–4.8 years) and a follow-up period of 58 months (range 38–68 months). The patients in group 2 underwent LD tendon transfer with SS sliding.ResultsA significant improvement in preoperative passive ER from − 3.6° to 67.3° after operation was observed in group 1. In group 2, preoperative passive ER in adduction improved from 0° to 72.3°. We found no significant difference (P = 0.1) in postoperative improvement in active ER in both groups (group 1 vs. group 2: 75° vs. 77.3°). Similarly, no significant difference (P = 0.7) in postoperative improvement in passive ER was found between the groups (group 1 vs. group 2: 71° vs. 72.3°).ConclusionsLD tendon transfer with SS release or sliding is an effective procedure to improve shoulder ER in patients with OBPP, with no inferiority of SS muscle release or sliding for internal rotation contractures and increased passive range of shoulder motion.Level of evidenceLevel III; Retrospective Cohort Comparison; Treatment Study.

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