Figure 3.
Radiographic classification based on preoperative X-ray. (a) Type I; (b) type II; (c) type III.
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.