discovery of posterior oblique ligament (pol) within the distal forearm cruciate complex (dfcc)

Objectives: to introduce a ligament in the posterior distal extent of the forearm interosseous membrane (iom).methods: ten cadavers were dissected in which the ligament was consistently present extending obliquely from the distal radius metaphysis to the distal radioulnar joint capsule. the ligament was also explored in a patient during posterior interosseous nerve (pin) excision.results: the posterior oblique ligament (pol) is found consistently in all cadavers via a dorsal approach.conclusion: this discovery highlights the complexity of forearm ligamentous structures and their role in the proximal, middle, and distal radio-ulnar stabilization.