Fig. 4

a Representative cross-sections of GC muscles stained with Masson’s trichrome in the non-PRP and PRP groups at 4, 6, 8, and 10 weeks after osteotomy (Bar, 100 μm). b The ratio of the fibrotic area to the total muscle cross sectional area in the GC muscles of the two groups. Data represent mean ± SEM (n = 10/group/week). c Total hydroxyproline content in the GC muscles of the two groups. Data represent mean ± SEM (n = 10/group/week)