Joints of the forefoot (tarsometatarsal, metatarsophalangeal and interphalangeal)

Study entry

Classification

Synovial: tarsometatarsal (plane, with slight sliding), metatarsophalangeal (condyloid) and interphalangeal (hinge).

Surfaces

Cuneiforms and cuboid with the bases of the metatarsals; heads of the metatarsals with the proximal phalanges; phalanges with each other.

Capsule

Reinforced by dorsal, plantar and interosseous ligaments; the deep transverse metatarsal ligament joins the heads of the metatarsals.

Movements

Metatarsophalangeal: flexion (flexor digitorum brevis, lumbricals, interossei, flexor hallucis brevis, flexor hallucis longus, flexor digiti minimi brevis, flexor digitorum longus), extension (long and short extensors), abduction (abductor hallucis, abductor digiti minimi, dorsal interossei) and adduction (adductor hallucis, plantar interossei). Interphalangeal: flexion (long flexors, flexor digitorum brevis, quadratus plantae) and extension (extensors).

Blood supply

[CHECK: Moore does not describe it in the passages consulted (look in another source).]

Innervation

[CHECK: Moore does not describe it in the passages consulted (look in another source).]

Source: cap. 7, «Articulaciones del miembro inferior»: articulaciones del pie; tabla 7-19

Other structures in this region

• Interosseous membrane of leg
• Obturator membrane
• Distal intertarsal joints (cuneonavicular, cuboideonavicular, intercuneiform and cuneocuboid)
• Triradiate cartilage of the acetabulum
• Hip joint
• Knee joint
• Superior tibiofibular joint
• Tibiofibular syndesmosis (inferior tibiofibular joint)