Fig. 8From: 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 studyStability assessment of CICPS. A The horizontal distance of CICPS from the apex to the anterior margin of the vertebra (X) after surgery and at final follow-up; B The vertical distance of CICPS from the apex to the superior endplate(Y) after surgery and at final follow-up; C Represents the absolute difference of x value and y value between the postoperative and the last follow-upBack to article page