From: Repair of symptomatic bilateral L5 spondylolysis with autogenous iliac crest graft and temporary intersegmental pedicle screw fixation in youth
Time (postop)
Union rate of pars
Union rate of patients
6 months
15.8% (6/38)
10.5% (2/19)
9 months
47.3% (18/38)
26.3% (5/19)
12 months
78.9% (30/38)
68.4% (13/19)
24 months
92.1% (35/38)
84.2% (16/19)