Research Article

Osteogenic Matrix Cell Sheets Facilitate Osteogenesis in Irradiated Rat Bone

Figure 3

Microscopic appearance of the harvested femur at 12 weeks postoperatively. (a) Sheet group shows that smooth and rigid callus covers the grafted bone, resulting in bone union. (b) Control group shows that soft tissue covers the grafted bone, resulting in nonunion.
(a) Sheet
(b) Control