Fig. 2From: Clinical evaluation of the efficacy of a new bone cement-injectable cannulated pedicle screw in the treatment of spondylolysis-type lumbar spondylolisthesis with osteoporosis: a retrospective studySurgical procedure of CICPS. A CICPS nailing angle slightly larger than normal pedicle screws, red line represents CICPS nailing angle and green line represents normal screws nailing angle. B Intraoperative bone cement dispersion under c-arm fluoroscopy monitoring. C Customized injection system of CICPS, red arrow indicates negative pressure aspiratorBack to article page