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. 2011 Mar-Apr;45(2):136–140. doi: 10.4103/0019-5413.77133

Figure 2.

Figure 2

(a) Preoperative lateral radiograph and (b) follow-up lateral radiograph of a patient with bilateral spondylolysis of L5 fixed by Buck’s technique on both sides. (c) Preoperative and (d) follow-up axial CT scan of the same patient showing complete healing of the pars defect bilaterally, without signs of screw loosening, back out, or breakage