Second plantar tarsometatarsal ligament

The second plantar ligament (C1-M2,3) is termed as the “plantar Lisfranc ligament” because of its position, orientation, and connection with the Lisfranc ligament. 

The second plantar ligament arises from the inferolateral surface of C1, below the Lisfranc ligament insertion, proximal and deep in relation to the insertion of the peroneus longus tendon. Then it takes an oblique course, oriented laterally and distally. Proximally, it splits into a superficial component that inserts on the base of M3 and a deeper band that attaches at the base of M2, on its medial aspect

Since the base of the first and second metatarsal bones lack the adhesion of intermetatarsal ligaments, the Lisfranc ligament plays an important role in maintaining the stability of the medial column and axial column of the foot arch. Lisfranc injuries refer to injuries of the bones, joints, and ligaments of the Lisfranc joint, which are rare in clinical practice; accounting for approximately 0.2% of all fracture cases.