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, Fluoroscopic image of a funnel inserted in the intervertebral disk space. B, Bone grafting through the funnel with the guidance of fluoroscopy. C, Use of semitubular retractor protecting the exiting nerve root during cage insertion. D, Use of semitubular retractor protecting the traversing nerve root during cage insertion.
