The cuboid-navicular ligaments (dorsal, plantar, and interosseous) connect the navicular to the cuboid across the transverse arch. They maintain the connection between the medial and lateral midfoot columns during the loading and push-off phases of gait. Their disruption in Lisfranc injuries and Chopart fracture-dislocations widens the transverse arch.
| Origin | Lateral navicular |
|---|---|
| Insertion | Medial cuboid |
| Actions |
|
|---|
Bind the navicular to the cuboid and help stabilise the transverse tarsal region.
Cuboid-navicular ligament injuries are assessed on weight-bearing radiographs looking for widening of the space between the navicular and cuboid, and CT confirms the injury. Anatomical reduction and fixation of Chopart joint injuries includes assessment and repair of the cuboid-navicular ligament complex. Degenerative change at the cuboid-navicular articulation is an uncommon source of lateral midfoot pain that can be confirmed by selective injection before arthrodesis is considered.
Cuboid-navicular ligament failure in Chopart injury widening the transverse arch managed with anatomical ORIF of all midfoot components.
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