Ligament of Testut is another name of
Radio scapholunate ligament. (Pg-904, Gray's anatomy,39th edition) Radioscapholunate: (ligament of Testut and Kuenz); - orignates from palmar aspect of ridge between scaphoid & lunate fossae & inses into scapholunate interosseous ligament; - it acts as neurovascular supply to scapholunate interosseous membrane and is not a true extrinsic ligament of wrist.
Radio scapholunate ligament
Sho radiolunate ligament
Ulnolunate ligament
Ulnotriquetral (ulner collateral) ligament