Fig. 3

The X-ray results of four groups at 2, 4, 8, 12, and 24 weeks post-implantation. The X-ray results of group a, at each time point, the area of the bone defect was observed. With the passage of time, the end of the fracture was gradually absorbed and hardened. The X-ray results of group b, autogenous bone and the bone stump had good involution. In the 8th week, the broken area is distinguished. In the 12th and 24th weeks, the implanted bone was absorbed and the morphology was similar to that of the radius. The X-ray results of group c, the material and the bone stump had good involution. In the 4th week, callus wraps around the surface of the material. In the 8th week, the material was absorbed and degraded in different degrees. In the 12th week, the new bone appeared in some parts, and the material was tightly bound to the host bone for 24 weeks. The X-ray results of group d, the material was well connected with the host bone, and 4 weeks later, it was closely connected with the host bone. The bone density increased in the 8 weeks, and the new bone tissue appeared at the end of the 12th week. In the 24th week, the material was similar to the radius