Pronator quadratus transfer for chronic anterior subluxation of the distal ulna: A case report

Soft-tissue stabilizers of the distal radioulnar joint: an in vitro kinematic study

“…Numerous treatment options reflect the complex and poorly understood local anatomy of the DRUJ. [1][2][3][4][5][6][7][8][9][10][11][12][13][14][15] The DRUJ capsule, 16 the palmar and dorsal radioulnar ligaments (RULs), [17][18][19][20][21][22] the triangular fibrocartilage (TFC), 23,24 the extensor carpi ulnaris (ECU) subsheath, 25 the ulnocarpal ligaments (UCL), 22 the interosseous membrane (IOM), 26 -28 the pronator quadratus (PQ), 27,29,30 and the bony anatomy 22 all have been shown to contribute to DRUJ stability. The relative importance of each structure for stability, however, remains controversial.…”

Comparison of Distal Radioulnar Joint Reconstructions Using an Active Joint Motion Simulator

“…The large range of motion required of the DRUJ for normal forearm rotation is facilitated by minimal bony constraint and a greater dependence on soft-tissue and dynamic muscle stabilizers. Many reconstructive treatment options [1][2][3][4][5][6][7][8][9][10][11][12][13][14] have been described to treat the chronically unstable DRUJ. These procedures reflect the limited intrinsic stability of the DRUJ and the difficulty in replicating the complex ligamentous anatomy that normally stabilizes it.…”