A
First metatarsal base to the medial cuneiform
B
Medial cuneiform to the base of the second metatarsal
C
Navicular to the medial cuneiform
D
Cuboid to the base of the fourth metatarsal
Explanation:The correct option is 'b'. The Lisfranc ligament is a strong interosseous ligament that originates from the lateral aspect of the medial cuneiform and inserts onto the medial aspect of the base of the second metatarsal. Its disruption (Lisfranc injury) leads to instability of the tarsometatarsal joint complex, often requiring surgical stabilization. There is no direct ligamentous connection between the 1st and 2nd metatarsal bases.
Reference: Myerson MS, et al. Fracture dislocations of the tarsometatarsal joints: end results correlated with pathology and treatment. Foot Ankle. 1986;6(5):225-242.