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.
Schematic of the fibro-osseus tunnel composed of five annular and three cruciform pulleys through which the flexor tendons run. The most common location of triggering is at the A1 pulley. (Adapted with permission from Berger RA, Weiss AC: Hand Surgery, Baltimore, MD, Lippincott, Williams, Wilkins, 2003)
