Fig. 4

Radiographical images (anteroposterior) of the empty defect group (non-infected and infected) at the end of the study. (A) Empty defect non-infected, n = 6; (B) Empty defect infected, n = 5. (C, D) Quantification of bone healing in the two groups using RUST of the anteroposterior and lateral radiographs of the rabbit humerus at (C) 6 weeks and (D) end of the study. A RUST value > 10 is considered as healed osteotomy, RUST value < 6 is considered as not healed osteotomy, RUST value between 6–10 is considered neither union nor definite non-union. Statistical analyses were performed using Mann Whitney test, *p < 0.05). Error bars indicate SD