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Motor function evaluation at 4, 8, and 12 weeks after surgery. (A) Representative footprints and three‐dimensional stress diagrams for each group at 12 weeks after surgery. The sciatic nerve function index (SFI) in each group at 4 (B), 8 (C), and 12 (D) weeks after surgery. Data are presented as the mean ±standard deviation (SD). * p <.05; ** p <.01; N.S., no significant difference
