Dorsal Metacarpal Ligaments as, Posterior View

Description

Oriented from the posterior (dorsal) aspect of an adult male hand, the illustration emphasizes the dorsal metacarpal ligaments spanning adjacent metacarpal shafts and necks, bridging the intermetacarpal intervals proximal to the metacarpophalangeal joints. Deep to this ligamentous network lie the bases of the first through fifth metacarpals articulating with the distal carpal row, including trapezium and trapezoid laterally (radial side) and capitate and hamate more medially (ulnar side), with the second and third metacarpals seated centrally. Phalanges extend distally from each metacarpal head, and the articular cartilage is indicated at the carpometacarpal, metacarpophalangeal, and interphalangeal joints. Dorsal surfaces read cleanly. Dorsal metacarpal ligament anatomy matters when you are teaching or planning around dorsal hand exposures, where extensor tendons and the dorsal capsuloligamentous complex constrain splay of the metacarpals while permitting the small glides needed for grip. Disruption of these short, stout bundles is a recognized contributor to carpometacarpal and metacarpal instability patterns, and it helps explain why certain metacarpal base fracture dislocations and high-energy crush injuries can widen intermetacarpal spaces even when the volar structures appear intact. The posterior view also supports correlation with dorsal surgical approaches used for metacarpal base fixation and for access to the second through fifth carpometacarpal joints, where preserving dorsal ligamentous attachments can reduce postoperative stiffness. Hand anatomy lecturers can drop this plate directly into an upper-limb module to anchor discussion of intermetacarpal stability, joint congruence, and the relationship between the distal carpal row and metacarpal bases, and orthopedic or plastic surgery teams can adapt it for patient education around dorsal incisions and ligament-sparing fixation strategies. It also fits well in radiology teaching files when pairing dorsal anatomy with oblique hand radiographs or CT reconstructions focused on carpometacarpal alignment. Anatomical accuracy verified by SciePro's Medical Advisory Board.