Metatarsophalangeal joint dislocations are unusual in children and usu
ally occur in the hallux. We are reporting a case of irreducible traum
atic dislocation of the fifth metatarsophalangeal joint. At open reduc
tion, the metatarsal head was incarcerated under the flexor digitorum
longus. After returning the flexor digitorum longus tendon to its anat
omical position, the metatarsophalangeal joint reduced and was stable.