Fig. 3
From: Incidence and risk factors for early and late reoperation following lumbar fusion surgery
A 74-year-old patient underwent second surgery for screw misplacement. The patient underwent posterior decompression and fusion surgery for L3–L4 grade 2 spondylolisthesis and stenosis (L4–L5, L5–S1) (a, b). The postoperative X-ray was normal (c). The patient had moderate pain, and CT revealed bone union and screw displacement at the 1-year follow-up (d). The patient underwent revision surgery and achieved adequate pain control (e)