Lateral Cuneiform Bone, Inferior View

Description

Oriented to the plantar (inferior) surface of the left foot, the lateral cuneiform (os cuneiforme laterale) is presented as a wedge-shaped tarsal bone in the distal row, lying distal to the navicular and proximal to the base of the third metatarsal. Medially it approaches the intermediate cuneiform, while laterally its prominent articular facet meets the cuboid at the lateral cuneocuboid articulation. The plantar aspect appears narrower than the dorsal surface, consistent with the cuneiform’s role in maintaining the transverse arch. Small but diagnostic. Attention to the inferior surface matters because many learners only encounter the cuneiforms from dorsal views, then struggle to translate that knowledge into plantar surgical anatomy and radiographic interpretation. The lateral cuneiform anchors the third ray and sits at the transition between the medial column and the lateral column, a relationship that becomes clinically concrete in Lisfranc injuries where the tarsometatarsal complex can fail at or near the third metatarsal base and intercuneiform joints. Plantar-focused understanding also helps when correlating midfoot pain patterns with joint degeneration at the naviculocuneiform and cuneocuboid interfaces. Use this illustration in gross anatomy or podiatric anatomy teaching to clarify plantar versus dorsal morphology of the distal tarsal row and the way the cuboid, navicular, and cuneiforms interlock. It also fits well in orthopaedic, radiology, and sports medicine materials discussing midfoot instability, Lisfranc fracture-dislocation patterns, and surgical approaches that rely on accurate bony landmarks rather than soft-tissue cues. Anatomical accuracy verified by SciePro's Medical Advisory Board.