Dorsal Radial Metaphyseal Arcuate Ligament Side, Posterior View

Description

Posterior to the distal radius, a curved fibrous band is traced along the dorsal metaphyseal region, forming the dorsal radial metaphyseal arcuate ligament as it sweeps toward the dorsoradial wrist. The distal radial articular margin lies deep and distal to the ligament, with the carpal mass immediately inferior, where the scaphoid and lunate typically articulate with the radius. Extensor tendons course superficially across the dorsum of the wrist toward the metacarpals and phalanges, creating a clear layered relationship between bone, ligament, and dorsal tendon compartments. Orientation is explicit. Emphasizing the dorsoradial distal radius matters when you are teaching why stability at the radiocarpal joint depends on more than the palmar radiocarpal complex. Dorsal wrist pain after a fall on the outstretched hand often prompts evaluation of the scapholunate interval and dorsal capsuloligamentous restraints, and a posterior view helps you connect the distal radial metaphysis to the dorsal capsule, extensor retinaculum region, and adjacent tendon gliding planes. For surgeons planning a dorsal approach for scapholunate repair, dorsal ganglion excision, or distal radius fracture fixation, this perspective clarifies where a metaphyseal-based ligamentous band can be encountered relative to the extensor compartments and carpal roof. Use this illustration in gross anatomy labs covering the hand and wrist, in orthopedic and hand surgery teaching files discussing dorsoradial wrist instability patterns, and in radiology or sports medicine modules that correlate dorsal soft-tissue restraints with MRI or ultrasound landmarks. It also fits well in procedural guides that describe safe dorsal dissection planes and tendon-sparing exposure at the distal radius. Anatomical accuracy verified by SciePro's Medical Advisory Board.