Radiographic measurements on whole spine standing x-rays before and after surgery.
Measurement | Mean (SD) (Range) | P value |
C7SVA, mm | 0.1 | |
Preoperative | 79.6 (63) (−43−254) | |
Postoperative | 60 (51.8) (−26–217) | |
∆C7SVA | −33.6 (57.9) (−166–60) | |
TK, ° | 0.01 | |
Preoperative | 36.1 (15.4) (5–77) | |
Postoperative | 43.8 (15) (21−91) | |
∆ | 4.2 (15.3) (−35–39) | |
LL, ° | 0.003 | |
Preoperative | 32.9 (15.9) (−14–78) | |
Postoperative | 41.6 (12.4) (24–84) | |
∆ | 9.3 (10.5) (−4–46) | |
T10-L2 sag Cobb, ° | 0.8 | |
Preoperative | 3 (12.7) (−24–30) | |
Postoperative | 2.3 (11.2) (−30–32) | |
∆ | −1 (9.4) (-21–32) | |
PI, ° | 49 (10.7) (21–77) | |
PT, ° | 0.7 | |
Preoperative | 21.1 (9.6) (−4–54) | |
Postoperative | 21.8 (7.3) (2–34) | |
∆ | 0.1 (10) (−28−26) | |
Degenerative scoliosis | Left convex 63% | |
Scoliotic apex level | ||
L1 | 1% | |
L2 | 25% | |
L2/3 | 4% | |
L3/4 | 6% | |
L4 | 6% | |
Coronal Cobb, ° | 0.02 | |
Preoperative | 16.3 (12) (0−48) | |
Postoperative | 10.8 (10.3) (0–45) | |
∆ | −4.8 (8.4) (−24–30) | |
C7PL, mm | 0.6 | |
Preoperative | 14.1 (15.1) (0–54) | |
Postoperative | 12.9 (9.1) (0–28) | |
∆ | −3.7 (15.3) (−45–26) |
C7PL, C7 plumb line (coronal); C7SVA, C7 sagittal vertical axis; LL, lumbar lordosis; PI, pelvic incidence; PT, pelvic tilt; TK, thoracic kyphosis.