Abstract
A rare case of dorsal dislocations of the first, second and third metatarsophalangeal (MTP) joints, occurring in a 29-year-old man, was reported. The dislocation of the first MTP joint could be reduced manually, but the second and third MTP-dislocations had to be surgically reduced.
In the X-ray, shortening of the second and third toes with increased MTP joint-spaces in anteroposterior view and plantar location of the second and third metatarsal heads in relation to the proximal phalanx in lateral view, were observed. Hyperextension of the MTP joints was the cause of these dislocations.
The second and third metatarsal heads were trapped between the fibrocartilagenous plate on the plantar side, and the dorsal joint-capsule and deep transverse metatarsal ligament on the dorsal side. They were reduced easily by division of the fibrocartilagenous plate, the deep transverse ligament and the dorsal joint-capsule.
