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 The use of an expandable retractor provides an enlarged surgical area and sufficient illumination for MIS-PLF. b After the meticulous decortication of bilateral posterolateral gutters, the morcellated cancellous iliac bone was grafted bilaterally in the MIS-PLF group
