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.
a Hip prosthesis. Zones 1–3 in the acetabular component correspond to DeLee-Charnley zones. Zones 4–10 in the femoral component correspond to Gruen zones. b Knee prosthesis. Zones 1–3 are located in the femoral component (on the sagittal view) and zones 4–6 are located in the tibial component (on the coronal view)
