[The ligaments of the scaphoid bone].

The scaphoid has three separately directed ligamentous connections, directed 1. proximally, toward the distal radius, 2. distally, toward the distal carpal row, and 3. ulnarly, toward the adjacent lunate. The palmar radiocarpal ligament consists of three distinct fiber complexes. Two of them, the radiocapitate and deep radioscapholunate, insert on the scaphoid, whereas the collateral ligament courses to the distal pole of the scaphoid. Dorsally, the dorsal radiocarpal ligament passes the proximal pole of the scaphoid without direct attachment. The dorsal arcuate ligament spans the midcarpal joint, from the scaphoid tubercle to the triquetrum. The well developed interosseous scapholunate ligament connects the proximal pole of the scaphoid with the lunate in a distally concave semicircular fashion. Short ligaments extend between the distal pole of the scaphoid and the trapezium palmarly, dorsally and radially, and between the distal pole of the scaphoid and the trapezoid palmarly and radially.