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.
Results of phantom study: (a) TREx and (b) TREϕ for KC and tracker guided approaches; (c) TREx and (d) TREϕ relative to the target vertebrae; (e) error windows in relation to planned trajectory of a 6×45 mm screw (green) based on mean errors for KC (cyan) and tracker (magenta) guidance.
