Table 1.
Reading results of the spinopelvic parameters
| Variable | Reading 1 |
Reading 2 |
||||
|---|---|---|---|---|---|---|
| Rater 1 | Rater 2 | Rater 3 | Rater 1 | Rater 2 | Rater 3 | |
| SS (°) | 42 (14–63) | 38 (16–64) | 37 (16–61) | 41 (16–64) | 37 (16–63) | 37 (15–59) |
| PI (°) | 61 (29–94) | 56 (27–85) | 56 (31–84) | 60 (32–87) | 57 (25–100) | 56 (29–90) |
| TK (°) | 44 (2–69) | 42 (4–68) | 39 (10–63) | 43 (3–70) | 43 (4–69) | 40 (9–67) |
| SVA (mm) | 36 (-46 to 196) | 36 (-44 to 193) | 37 (-47 to 203) | 35 (-43 to 192) | 36 (-41 to 175) | 37 (-41 to 192) |
| PT (°) | 20 (2–40) | 18 (1–39) | 19 (2–39) | 20 (2–41) | 19 (1–36) | 20 (3–41) |
| Classified SVA | ||||||
| 0 (< 4 cm) | 32 (65) | 32 (65) | 34 (69) | 32 (65) | 32 (65) | 31 (63) |
| + (4–9.5 cm) | 12 (25) | 12 (25) | 10 (20) | 12 (25) | 12 (25) | 13 (27) |
| ++ (> 9.5 cm) | 5 (10) | 5 (10) | 5 (10) | 5 (10) | 5 (10) | 5 (10) |
| Classified PT | ||||||
| 0 (< 20°) | 24 (49) | 26 (53) | 26 (53) | 24 (49) | 26 (53) | 26 (53) |
| + (20°–30°) | 19 (39) | 19 (39) | 19 (39) | 19 (39) | 19 (39) | 18 (37) |
| + + (> 30°) | 6 (12) | 4 (8) | 4 (8) | 6 (12) | 4 (8) | 5 (10) |
Values are presented as mean (range) or number (%).
SS, sacral slope; PI, pelvic incidence; TK, thoracic kyphosis T4–T12; SVA, sagittal vertical axis; PT, pelvic tilt.
Classification according to Scoliosis Research Society-Schwab adult deformity classification sagittal modifiers. [14]