A small bursa where the extensor pollicis longus tendon changes direction around Lister's tubercle of the distal radius, reducing friction at this acute angle. The bursa is enclosed within the third extensor compartment synovial sheath at Lister's tubercle level.
EPL rupture at Lister's tubercle is a well-recognised complication of distal radius fractures (even minimally displaced ones) and rheumatoid arthritis, occurring from attrition against the tubercle. The bursal/sheath complex at this point becomes devascularised from haematoma or tenosynovitis, predisposing to tendon rupture weeks after the fracture. EPL tendoscopy at Lister's tubercle decompresses the sheath to prevent this complication.
Attrition rupture of the EPL tendon at its change of direction around Lister's tubercle, typically 6-8 weeks after a distal radius fracture, producing loss of thumb IP extension and managed by EIP to EPL transfer.
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.
