Relationship Between Spinopelvic Parameters and Clinical Symptoms of Low-grade Lumbar Isthmic Spondylolisthesis

The pelvic parameters were collected including PI, pelvic tilt (PT), sacral slope (SS) and LL ,and compared between IS patients and the AS group. Besides, spinopelvic malalignment was defined as an absolute value of PI-LL greater than 10.In the IS group,the clinical symptoms were assessed with the Japanese Orthopaedic Association (JOA) score and the visual analogue scale (VAS). We compared spinopelvic parameters between the asymptomatic adults and the IS patients. Additionally, we investigated correlations between spinopelvic parameters and clinical symptoms.