The C2 cruciate pulley is located over the middle phalanx between the A4 and A5 pulleys, forming the second X-shaped crossing of the digital flexor sheath.
Maintains flexor tendon position over the middle phalanx, allows sheath folding during DIP joint flexion, and provides the fibrous support between the A4 and A5 pulleys.
The C2 pulley is the thinnest cruciate pulley and provides minimal biomechanical restraint — its incision for tendon retrieval is acceptable without causing bowstringing.
The C2 cruciate pulley is routinely divided during zone I FDP repair for tendon retrieval without risk of bowstringing, as the A4 pulley provides the critical DIP joint constraint.
This website uses cookies to enhance your experience. Some are essential for site functionality, while others help us analyze and improve your usage experience. Please review your options and make your choice.
If you are under 16 years old, please ensure that you have received consent from your parent or guardian for any non-essential cookies.
Your privacy is important to us. You can adjust your cookie settings at any time. For more information about how we use data, please read our privacy policy. You may change your preferences at any time by clicking on the settings button below.
Note that if you choose to disable some types of cookies, it may impact your experience of the site and the services we are able to offer.
Some required resources have been blocked, which can affect third-party services and may cause the site to not function properly.
This website uses cookies to enhance your browsing experience and ensure the site functions properly. By continuing to use this site, you acknowledge and accept our use of cookies.
