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.
Location of patellofemoral cartilage contact on the patellar surface. Cartilage contact in the proximodistal (A) and the mediolateral (B) direction as a function of knee flexion angle (mean ± SD; *P values <0.007 determined with the Wilcoxon signed rank test).
