Plantar Calcaneonavicular Ligament (Spring Ligament)

The plantar calcaneonavicular ligament (spring ligament) is a thick, broad fibrous band that’s positioned on the underside portion of the foot. It connects the navicular bone’s plantar (foot aspect) floor with the sustentaculum of the calcaneus, a shelf-like side of the heel bone. It additionally offers assist to the top of the talus, a bone that makes up the decrease portion of the ankle joint. In doing so, the ligament bears a big quantity of physique weight.

This ligament performs an necessary position within the improvement of acquired ‘flat foot deformity’ (the place the arch is lacking) in adults. It has been linked to the stabilization of the foot’s longitudinal arch; this results in insufficiency of the spring ligament, which causes it to tear.

The plantar calcaneonavicular ligament advanced is completely different in several ft. Generally it’s comprised of two ligaments, the inferior calcaneonavicular and the superomedial; nevertheless, it most frequently has a 3rd ligament.

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