The scaphotrapeziotrapezoid (STT) ligament complex connects the distal scaphoid to the trapezium and trapezoid, stabilising the scaphoid-trapezium-trapezoid joint and controlling scaphoid rotation at its distal pole.
Provides the distal constraint of the scaphoid, limiting scaphoid flexion, and stabilises the trapezioscaphoid articulation — the basis of STT arthrodesis for scaphoid instability. Acts as the distal anchor of the scapholunate ligament chain.
STT arthritis is the second most common site of wrist arthritis after the thumb CMC joint. STT fusion is used in DISI instability and scaphoid non-union to control scaphoid rotation. FCR tendinopathy at the wrist may be secondary to underlying STT arthritis.
Degenerative joint disease at the scaphotrapeziotrapezoidal articulation producing radial wrist pain and restricted wrist movement, managed by joint injection or STT fusion.
Scaphotrapeziotrapezoid arthrodesis controlling scaphoid rotation in scapholunate dissociation with DISI deformity, stabilising the proximal carpal row.
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.
