Table 1 Demographics
From: Retrospective analysis of surgical outcomes for atlantoaxial subluxation
Case, no. | 30 |
RA, no. | 7 |
OA, no. | 20 |
Trauma, no. | 3 |
Age, average, years | 70.3 ± 8.7 |
Sex, female/male, no. | 11/19 |
Ranawat value, average, mm | |
Preoperative | 14.0 ± 3.3 |
Postoperative | 13.6 ± 2.7 |
CAA, average, degrees | |
Preoperative | 155.6 ± 7.4 |
Postoperative | 158.4 ± 6.7 |
C1/2 angle, average, degrees | |
Preoperative | 19.9 ± 10.0 |
Postoperative | 22.1 ± 9.4 |
ADI flexion/extension, average, mm | |
Preoperative | 8.1 ± 2.7/4.4 ± 2.4 |
Postoperative | 5.5 ± 3.2/4.4 ± 2.6 |
ADI neutral, average, mm | |
Preoperative | 7.1 ± 2.8 |
Postoperative | 4.7 ± 2.8* |
C2–7 angles, average, degrees | |
Preoperative | 9.6 ± 13.6 |
Postoperative | 3.5 ± 13.4 |
Cervical SVA, average, mm | |
Preoperative | 22.2 ± 19.6 |
Postoperative | 26.0 ± 20.7 |
Operative time, average, min | 163.5 ± 64.9 |
Blood loss, average, mL | 136.5 ± 304.0 |
C-JOA score, average, points | |
Preoperative | 9.4 ± 3.9 |
Postoperative | 12.4 ± 3.6* |
Recovery rate of C-JOA score, average, % | 46.0 ± 35.3 |
Complications, no. | 9 (30.0%) |
Revision, no. | 6 (20.0%) |