Tarsometatarsal joints

Tarsometatarsal joints

Motion

The tarsometatarsal joints are synovial plane joints found in the foot. They are formed by the articulations between the five metatarsal bones and the cuneiform and cuboid bones. The 1st metatarsal articulates with the medial cuneiform, the 2nd with the intermediate cuneiform, the 3rd with the lateral cuneiform, the 4th with the lateral cuneiform and the cuboid, and the 5th with the cuboid only The joint between the metatarsal of the big toe and the medial cuneiform bone gives a greater range of motion than the other joints allowing flexion, extension, and rotation.

The other joints are limited to slight gliding movements of each bone over the other. The joints taken as a whole play a role in pronation and supination of the foot.

Stability

The fibrous capsules surrounding the joints provide some stability.

The joints are further stabilized by ligaments:
-Dorsal ligaments
-Plantar ligaments
-Interosseus ligaments.

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