Morton's toe recorded prevalence varies in different populations, with estimates from 2.95% to 22%. The name derives from American orthopedic surgeon Dudley Joy Morton (1884–1960), who originally described it as part of Morton's triad (a.k.a. Morton's syndrome or Morton's foot syndrome): a congenital short first metatarsal bone, a hypermobile first metatarsal segment and calluses under the second and third metatarsals. Confusion has arisen from "Morton's foot" being used for a different condition, Morton's metatarsalgia, which affects the space between the bones and is named after Thomas George Morton (1835–1903). Morton's toe, especially the second-toe-is-longer versions, has a long association with disputed anthropological
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