Fig. (7) Histological findings (Hematoxylin-Eosin staining). (A) At 8 weeks in BMSCs/PRP (100) group, newly bone formed on the proximal fragment extended the length of the defect to the distal in histological section. (B) At 8 weeks in BMSCs/PRP (100) group, woven bone was partly observed. CB: original cortical bone, NB: newly formed bone, BM: bone marrow, WB: woven bone, LB: lamellae bone.