Table 4. Type and Direction of Pedicle Breaches.
| Breach | Medial Breach | Lateral Breach | Total | |
|---|---|---|---|---|
| Cranial Screw | Caudal Screw | |||
| Grade 1 | 4 | 1 | 1 | 6 (37.5%) |
| Grade 2 | 0 | 7 | 3 | 10 (62.5%) |
| Grade 3 | 0 | 0 | 0 | 0 (0%) |
| Total | 4 (25%) | 8 (50%) | 4 (25%) | 16 (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.