Long plantar ligament
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The long plantar ligament features a form of an hourglass with a distal deep insertion at the cuboid bone and variably, more superficial insertions at the bases of the 2nd to 4th or 5th metatarsals, covering the peroneus longus tendon tunnel 1-3.
The distal insertions are the cuboid ridge and variably fan-shaped attachments to the 2nd to 4th or 5th metatarsal bases 1-3.
Variations of the long plantar ligament include different attachments to the metatarsal bases and the peroneus longus tendon sheath 1,3.
Similar to the short plantar ligament, the long plantar ligament features a relative homogeneous appearance and is well visualized on all planes 1-3.