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.
Revision rates
| Revision | Fixed-Bearing | Rotating-Platform | Total | No. Studies |
|---|---|---|---|---|
| Due to Deep Infection | 2/143 (1.40%) | 0/145 (0.00%) | 2/288 (0.69%) | 3 |
| Due to Loosening | 0/187 (0.00%) | 3/189 (1.59%) | 3/376 (0.80%) | 3 |
| For any reason | 4/625 (0.64%) | 4/618 (0.65%) | 8/1243 (0.64%) | 9 |
