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Intermetatarsal joints

The intermetatarsal joints (Latin: articulationes intermetatarsales) are very strong synovial plane type joints located in the foot. These articulations are formed between the bases of the second to fifth metatarsal bones.


Articulating structures of intermetatarsal joints

The articular surfaces of the intermetatarsal joints are the opposite surfaces of the bases of adjacent metatarsals.


Joint capsule and ligaments

The intermetatarsal joints are strengthened by a fibrous joint capsule and ligaments. The joint capsule usually is common with the tarsometatarsal joints. The bases of the four metatarsals are connected by three groups of ligaments:

  • Dorsal intermetatarsal ligaments - placed between the dorsal surfaces of the bases of the adjacent metatarsal bones;
  • Plantar intermetatarsal ligaments - strong, longitudinal or transverse ligaments located on the plantar side of the metatarsal bases;
  • Interosseous intermetatarsal ligaments - formed by strong, transverse fibers that connect the non-articular portions of the adjacent surfaces.


Movements of intermetatarsal joints

As plane type joints, the intermetatarsal articulations allow only slight movements.