Distal Part of the Radius, Lateral View

Description

Distal radius anatomy is emphasized in this lateral view, where the metaphysis flares as it approaches the radiocarpal joint and culminates laterally in the radial styloid process. The styloid projects distally beyond the level of the ulnar head, forming the lateral bony contour of the wrist and framing the scaphoid side of the carpus. Posteriorly, the dorsal (Lister) tubercle is typically appreciable as a low ridge that separates extensor tendon compartments, while the volar lip of the distal radius defines the anterior margin of the articular surface. Carpal relations sit immediately distal, with the proximal row (scaphoid and lunate) articulating on the distal radial surface and the distal radioulnar joint lying medial to the radiocarpal articulation. Distal radius landmarks guide both diagnosis and fixation of common wrist injuries. Colles and Smith fractures alter the normal profile of the metaphyseal flare and the position of the radial styloid, and even subtle loss of palmar tilt or radial inclination can be tied back to these bony reference points. Lister’s tubercle also matters in the operating room, acting as a palpable guide to the extensor pollicis longus tendon and a checkpoint during dorsal approaches, while the styloid region anchors the first dorsal compartment and often localizes pain in De Quervain tenosynovitis. Hard edges. No ambiguity. Use this illustration in upper limb gross anatomy teaching, orthopedic trauma manuals, and wrist arthroscopy or fixation training materials where you need a fixed lateral perspective to annotate the radial styloid, dorsal tubercle, and adjacent radiocarpal anatomy. It also suits radiology teaching files as a companion reference for lateral wrist projections and distal radius fracture morphology. Anatomical accuracy verified by SciePro's Medical Advisory Board.