Figure 4.
Axial T2-weighted magnetic resonance images of a patient with a hydrogel spacer before injection (a) and after injection (b).
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.