From: Risk factors of instrumentation failure after laminectomy and posterior cervical fusions (PCF)
 | Hardware failure | No hardware failure | p-Value |
---|---|---|---|
C2-C7 CL (degree) | Mean ± SD |  | |
Pre-operative | 13.5 ± 6.9 | 14.7 ± 6.5 | 0.545 |
Final follow-up | 17.8 ± 6.2 | 18.5 ± 6.5 | 0.701 |
C2-C7 SVA (mm) | Â | Â | Â |
Pre-operative | 23.8 ± 10.5 | 22.5 ± 8.9 | 0.641 |
Final follow-up | 21.4 ± 14.3 | 19.8 ± 15.3 | 0.567 |
T1S (degree) | Â | Â | Â |
Pre-operative | 23.8 ± 9.2 | 26.1 ± 9.0 | 0.436 |
Final follow-up | 22.6 ± 13.6 | 24.5 ± 10.5 | 0.502 |
CL correction (degree) | 4.3 ± 1.1 | 3.8 ± 1.2 | 0.196 |