Table 4.
Correlation coefficients between sacropelvic parameters and sagittal balance
| Parameter | LL | PI | PT | SS | SSA | SPA | ST | C7 | KA | L3 | S2 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| TK | 0.50° | −0.04 | −0.23 | 0.20 | 0.17 | 0.21 | 0.003 | −0.05 | −0.46° | −0.20 | 0.02 |
| LL | 0.19 | −0.28 | 0.53° | 0.48° | 0.63° | 0.56° | −0.52° | −0.62° | 0.32 | 0.27 | |
| PI | 0.62° | 0.54° | −0.07 | −0.20 | 0.44° | 0.02 | 0.04 | 0.03 | −0.27 | ||
| PT | −0.19 | −0.30 | −0.62° | 0.04 | 0.20 | 0.26 | 0.17 | −0.32 | |||
| SS | 0.22 | 0.42° | 0.47° | −0.20 | 0.28 | 0.20 | 0.02 | ||||
| SSA | 0.33 | 0.27 | −0.44° | −0.37 | 0.24 | 0.27 | |||||
| SPA | 0.30 | −0.60° | −0.60° | 0.38° | 0.46° | ||||||
| ST | −0.32 | −0.24 | 0.38 | 0.05 |
TK thoracic kyphosis, LL lumbar lordosis, PI pelvic incidence, PT pelvic tilt, SS sacral slope, SSA spinosacral angle, SPA spinosacral angle, ST spinal tilt, C/ distance from plumb line and C7, KA apex of TK, LL L3 distance from plumb line, S2 sacral distance from plumb line
° Statistically significant correlation coefficient (p < 0.05)