Table 1.
Sagittal lumbosacral parameters of normal adults in the control group (°, n = 207)
| Parameters | Range | Mean ± SD | Standard error |
|---|---|---|---|
| PI | 25 to 68 | 41.84 ± 7.71 | 0.536 |
| PT | −10 to 30 | 10.98 ± 7.47 | 0.519 |
| SS | 9 to 54 | 30.86 ± 7.35 | 0.511 |
| LL | 10 to 69 | 35.86 ± 10.87 | 0.755 |
| L5I | 1 to 38 | 18.57 ± 6.60 | 0.459 |
| L5S | −7 to 33 | 13.97 ± 6.41 | 0.445 |
| STA | 91 to 117 | 102.67 ± 4.80 | 0.334 |
PI: Pelvic incidence; PT: Pelvic tilt; SS: Sacral slope; LL: Lumbar lordosis; L5I: L5 incidence; L5S: L5 slope; STA: Sacral table angle; SD: Standard deviation.