Fig. 2.

Buck method of direct repair using a direct pars lag screw. A,B Postoperative AP (A) and lateral (B) plain X-rays showing placement of the pars screw through the pars defect (black arrow). C,D Sagittal (C) and axial (D) CT scans depicting a well fused pars defect 26 months after the operation (black arrows). Figure 2 labeled for reuse according to Creative Commons Attribution Non-Commercial 3.0 Unported License (From Shin MH, Ryu KS, Rathi NK, Park CK. Direct pars repair surgery using two different surgical methods: a pedicle screw with universal hook system and direct pars screw fixation in symptomatic lumbar spondylolysis patients. J Korean Neurosurg Soc. 2013. 51(1): p. 14-9, https://dx.doi.org/10.3340%2Fjkns.2012.51.1.14)