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.
3D colour map of facet joint subchondral bone density produced by CT osteoabsorptiometry at the pre-operative and 6-month post-operative visits. The dorsal aspects of the left and right facet joints at L3/L4 for patient 4 are shown. The distribution of the areas of maximum subchondral bone density were unchanged after 6 months. The overall bone density, however, decreased uniformally
