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.
Morphometric parameters concerning screw placement inside the lateral mass C1. It resembles a cupped fossa and its medial height strongly differs from its lateral counterpart. Therefore, the length of screw taps should respect preoperative measurements. mHLM middle height of lateral mass C1, MHLM medial height of lateral mass C1, LHLM lateral height of lateral mass C1, SFA superior facet angle C1
