The radioscapholunate ligament (ligament of Testut-Kuentz) is an intrasynovial neurovascular structure passing from the anterior radius to the scapholunate junction, often described as a ligament but primarily functioning as a conduit for the vascular supply to the proximal scaphoid and lunate.
Transmits blood supply to the proximal scaphoid and lunate from the radial artery, provides a minor constraint at the RSL junction, and is preserved in dorsal wrist approaches to maintain scaphoid vascularity.
The RSL ligament is identified during wrist arthroscopy as a soft tissue fold on the radial floor — its division in radiocarpal surgery may devascularise the proximal scaphoid. In Preiser disease (idiopathic proximal scaphoid AVN), RSL ligament vascular disruption has been proposed as a contributing mechanism.
The RSL ligament transmitting radial artery branches to the proximal scaphoid — its preservation in radiocarpal surgery is essential to avoid iatrogenic proximal scaphoid avascular necrosis.
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.
