Table 4 Radiographical outcomes
From: Association between anterior bone loss and anterior heterotopic ossification in hybrid surgery
Variables | AHO Group (n = 17) | Non-AHO Group (n = 80) | P Value |
|---|---|---|---|
Cervical lordosis (°) | |||
Preoperative | 5.3 ± 11.2 | 6.8 ± 10.8 | 0.611 |
Postoperative 3 month | 7.9 ± 9.4* | 10.2 ± 9.7* | 0.384 |
Last follow-up | 8.7 ± 9.1* | 11.5 ± 12.3* | 0.629 |
ROM C2-C7 (°) | |||
Preoperative | 51.8 ± 15.7 | 46.9 ± 14.4 | 0.209 |
Postoperative 3 month | 36.6 ± 9.8* | 34.9 ± 10.8* | 0.559 |
Last follow-up | 47.7 ± 8.9* | 42.7 ± 10.1* | 0.148 |
Arthroplasty Disc Angle (°) | |||
Preoperative | 1.7 ± 3.6 | 2.7 ± 3.5 | 0.313 |
Postoperative 3 month | 2.2 ± 3.7 | 2.7 ± 4.5 | 0.681 |
Last follow-up | 2.1 ± 5.2 | 3.4 ± 5.5 | 0.651 |
Arthroplasty Disc ROM (°) | |||
Preoperative | 8.7 ± 3.3 | 9.4 ± 4.1 | 0.459 |
Postoperative 3 month | 6.8 ± 4.1* | 7.8 ± 4.8* | 0.461 |
Last follow-up | 8.1 ± 5.0 | 9.0 ± 5.1 | 0.537 |
Arthroplasty FSU (mm) | |||
Postoperative 1 week AH | 27.6 ± 2.5 | 28.1 ± 2.9 | 0.496 |
Postoperative 1 week PH | 27.5 ± 2.2 | 28.3 ± 2.7 | 0.251 |
Postoperative 3 month AH | 27.3 ± 2.8 | 27.1 ± 4.0* | 0.909 |
Postoperative 3 month PH | 27.8 ± 2.2 | 28.1 ± 4.0 | 0.887 |
Last follow-up AH | 26.6 ± 2.3* | 27.2 ± 2.5* | 0.520 |
Last follow-up PH | 26.9 ± 1.9* | 28.0 ± 2.6 | 0.278 |
ADA change > 5° | 8 (47.1%) | 27 (33.8%) | 0.405 |
Prosthesis–endplate depth ratio | 0.91 | 0.90 | 0.866 |