Merve Çalkın KORKMAZ, Adil ONCEL, Ömer Faruk BUCAK, Sena TOLU
Southern Clinics of Istanbul Eurasia - 2026;37(3):301-305
Objective: Pelvic incidence-lumbar lordosis (PI-LL) mismatch is considered a marker of sagittal imbalance, but its clinical significance in chronic low back pain remains uncertain. This study aimed to investigate the relationship between spinopelvic alignment and clinical outcomes in patients with chronic low back pain (CLBP). Methods: In this cross-sectional observational study, 101 patients aged 18 years and older with CLBP (>12 weeks) were included. Spinopelvic parameters, including pelvic incidence (PI) and lumbar lordosis (LL), were measured using standardized standing radiographs. Patients were divided into two groups based on the PI-LL mismatch: PI-LL<10 derece (normal alignment) and PI-LL >=10 derece (mismatch). Visual Analog Scale (VAS), Short Form-36 (SF-36), and Oswestry Disability Index (ODI) scores were compared between the groups. Results: There were statistically significant differences in PI, LL, and PI-LL between the groups (p=0.026, p<0.001, and p<0.001, respectively). No significant differences were found in ODI, VAS (rest and activity), or SF-36 subdomains, except for general health (p=0.045). Multi-variate logistic regression identified general health as a significant predictor of PI-LL mismatch (OR=0.973, p=0.045). BMI showed a statistically significant association (p=0.036). Conclusions: Spinopelvic mismatch may be associated with higher BMI and lower general health perception, but not with pain or disability scores.
