The lesser metatarsal phalangeal joints Surface Anatomy

Location

The lesser metatarsal phalangeal joints are located at the base of each lesser toe. They can be made more prominent with toe flexion. The web spaces between each toe are at the level of the mid-shaft of the proximal phalanx of the toes that boarder it, and the metatarsal phalangeal joints of that toes are at the base of the proximal phalanx. The fifth metatarsal phalangeal joint can be identified as the convex contour on the lateral aspect of the foot at the base of the fifth toe.

Significance

Tenderness over the lesser metatarsophalangeal joints may be a sign of synovitis.

Tenderness over the second metatarsophalangeal joint may be a sign of Freiberg’s infarction (avascular necrosis).

Tenderness between joints may by a sign of Morton’s neuromas (interdigital neuromas)