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. 2022 Apr 2;18:130. doi: 10.1186/s12917-022-03231-6

Fig. 7.

Fig. 7

The surgical procedures for induction of 12 mm critical size ulnar defect. A 5 cm long linear incision was made over the craniolateral aspect of the mid of the antebrachium (A). The ulna was exposed by retraction of the surrounding muscles (B) where 2 drilling holes with 12 mm apart were created in the mid-diaphysis (C). The defect was left empty in the control group (D), filled with PRF clot in the PRF group (E) or ZnONPs were inoculated into the PRF clot in the PRF/ZnONPs (F)