Tarsometatarsal joints
Articulationes tarsometatarseae
- Latin synonym: Articulationes tarsometatarsales
- Latin eponym: Articuli Lisfranci
- Eponym: Lisfranc's joint
Definition
The tarsometatarsal joints (Lisfranc's) are arthrodial joints. The bones entering into their formation are the first, second, and third cuneiforms, and the cuboid, which articulate with the bases of the metatarsal bones. The first metatarsal bone articulates with the first cuneiform; the second is deeply wedged in between the first and third cuneiforms articulating by its base with the second cuneiform; the third articulates with the third cuneiform; the fourth, with the cuboid and third cuneiform; and the fifth, with the cuboid. The bones are connected by dorsal, plantar, and interosseous ligaments. The ligaments are :
- Dorsal tarsometatarsal ligaments
- Plantar tarsometatarsal ligaments
- Cuneometatarsal interosseous ligaments
The synovial membrane between the first cuneiform and the first metatarsal forms a distinct sac. The synovial membrane between the second and third cuneiforms behind, and the second and third metatarsal bones in front, is part of the great tarsal synovial membrane. Two prolongations are sent forward from it, one between the adjacent sides of the second and third, and another between those of the third and fourth metatarsal bones. The synovial membrane between the cuboid and the fourth and fifth metatarsal bones forms a distinct sac. From it a prolongation is sent forward between the fourth and fifth metatarsal bones.
Movements.—The movements permitted between the tarsal and metatarsal bones are limited to slight gliding of the bones upon each other.
Nerve Supply.—The intertarsal and tarsometatarsal joints are supplied by the deep peroneal nerve.
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