Kleinman's 2007 Clinical Perspective synthesizes 25 years of research on DRUJ biomechanics, anatomy, physical diagnosis, and surgical reconstruction — focusing on what structures actually stabilize the DRUJ during loaded forearm rotation and how to identify and repair them when they fail.
When you see a displaced distal radius fracture with a basilar ulnar styloid fracture, assume the Ligamentum subcruentum is avulsed — anatomic reduction of the styloid is required to restore foveal anatomy and DRUJ stability.
When a patient has ulnar-sided wrist pain and DRUJ instability but a normal arthroscopy, think isolated Ligamentum subcruentum avulsion and stress-test it with the pronation/supination provocative maneuvers described here.
Kleinman's 2007 Clinical Perspective synthesizes 25 years of research on DRUJ biomechanics, anatomy, physical diagnosis, and surgical reconstruction — focusing on what structures actually stabilize the DRUJ during loaded forearm rotation and how to identify and repair them when they fail.
When you see a displaced distal radius fracture with a basilar ulnar styloid fracture, assume the Ligamentum subcruentum is avulsed — anatomic reduction of the styloid is required to restore foveal anatomy and DRUJ stability.
When a patient has ulnar-sided wrist pain and DRUJ instability but a normal arthroscopy, think isolated Ligamentum subcruentum avulsion and stress-test it with the pronation/supination provocative maneuvers described here.