What Are Lisfranc Injuries?
Lisfranc Injuries are fractures, dislocations, and sprains of the Lisfranc joint. The foot is separated into three functional sections: the hindfoot, which absorbs shock during ambulation; the midfoot, which aids in force translation and rotational stability; and the forefoot, which aids in the “toe-off” phase of gait. By allowing force to be transferred between the midfoot and the forefoot, the Lisfranc joint aids in energy dissipation.
The Lisfranc joint provides a stable axis for rotation due to its limited mobility, and it is also the keystone for plantar flexion and dorsiflexion. Plantar flexion and dorsiflexion occur along a horizontal axis that runs through the junction of the metaphysis and diaphysis at the base of the second metatarsal. Because the second metatarsal is immobile and lacks dorsal support, placing the foot in excessive plantar flexion with an axial load might produce dorsal displacement of the second metatarsal base.
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