Table 1.
Distribution of screws with regard to the thoracic vertebrae in both groups
| Level | Free hand group | 3D group |
|---|---|---|
| Th1 | 4 | 6 |
| Th2 | 4 | 4 |
| Th3 | 1 | 8 |
| Th4 | 5 | 5 |
| Th5 | 7 | 4 |
| Th6 | 6 | 4 |
| Th7 | 4 | 6 |
| Th8 | 6 | 4 |
| Th9 | 12 | 5 |
| Th10 | 16 | 14 |
| Th11 | 20 | 17 |
| Th12 | 23 | 23 |
| Total | 108 | 100 |
Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.