The metatarsophalangeal joints (MTP joints), also informally known as toe knuckles, are the joints between the metatarsal bones of the foot and the proximal bones (proximal phalanges) of the toes. They are condyloid joints, meaning that an elliptical or rounded surface (of the metatarsal bones) comes close to a shallow cavity (of the proximal phalanges).
The ligaments are the plantar and two collateral.
Measuring the dorsiflexion of the MTP joints
- This article incorporates text in the public domain from page 359 of the 20th edition of Gray's Anatomy (1918)