Figure 3

Radiological images of a representative case with CPS. (A–L) A 61-year-old osteoporotic female with isthmic spondylolisthesis in the L5/S1 segments. (A–D) Preoperative X-rays and CT showed forward slip of the L5 vertebra and L5 spondylolysis. (E–H) Postoperative X-rays and CT showed that the internal fixation position was good and that the L5 vertebra was well reset. (I–L) Postoperative X-ray and CT at 24 months after fusion surgery showed that the internal fixation device did not loosen or break, the vertebra did not show slippage, and the intervertebral fusion was good.