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

Isthmic spondylolisthesis (IS) is one of the most common types of spondylolisthesis, and spinopelvic parameters are closely related to the clinical symptoms of spinal diseases. In this study, investigators attempted to investigate the relationship between spinopelvic parameters and clinical symptoms of patients with low-grade (Meyerding grade I-II) isthmic spondylolisthesis (IS).

A total of 120 patients with low-grade IS and 106 asymptomatic adults were included in this study. Sex, age and body mass index (BMI) were also collected. Various spinopelvic parameters were evaluated in whole-spine standing-position X-rays. The following spinopelvic parameters were measured: pelvic incidence (PI), sacral slope (SS), pelvic tilt (PT) and lumbar lordosis (LL). The clinical symptoms of the IS patients were assessed with the Japanese Orthopaedic Association (JOA) score and the visual analogue scale (VAS). Investigators compared spinopelvic parameters between the asymptomatic adults and the IS patients. Additionally, investigators investigated correlations between spinopelvic parameters and clinical symptoms.

Inclusion criteria

• isthmic spondylolisthesis subjects had spondylolisthesis at L4 or L5 (Meyerding grade I-II) with whole-spine standing lateral images

Exclusion criteria

• spondylolisthesis of other types (Degenerative, dysplastic, etc.);
• Lumbar infection and/or tumor diseases;
• A previous history of lumbar fusion surgery.