Fig. 5

X-ray images after 12 weeks post-surgery. (A) Comparison of the amount of new bone formation in different groups. (B) Significant new bone growth from the bone end towards the center of the bone defect, forming a lip-shaped wrapped bone cement spacer in Group B1. (C) No bone growth was observed in Group B2. (D) In Group B3, a small amount of new bone grew at the bone end. (E) In Group B4, atrophy was observed at the bone end. Note: **p < 0.01; ***p < 0.001