Corpus: Scapholunate ligament
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Synonyms: scapholunate ligament
English:
Definition[Bearbeiten]
The Ligamentum interosseum scapholunatum', short SL ligament, is a ligament in the area of the proximal carpal bones.
Anatomy[Bearbeiten]
The ligament is located between the Os lunatum and the Os scaphoideum. It has a cartilage covering (hyaline cartilage), which is why it is part of the joint body (similar to the ligamentum anulare radii).
Clinic[Bearbeiten]
Insufficiency or rupture of the scapholunate interosseous ligament can lead to scapholunate dissociation, the most common form of carpal instability. The result is a SLAC wrist.
Instabilities of the SL ligament can be analysed using the Watson test (scaphoid shift test) and the ballottement test.
A rupture of the interosseous scapholunate ligament can lead to a DISI or PISI configuration.