Baer,1 in 1906, called attention to certain cases characterized by pain over the plantar surface of the heel, due to a chronic inflammatory change, of gonorrheal origin, located in the flexor brevis digitorum muscle, with secondary new formation of bone or exostosis at the attachment of this muscle to the tubercle of the os calcis.
Nobl,2 of Vienna, had previously noted exostoses on the posterior surface of the os calcis, due, he thought, to inflammation of the sheath of the tendo Achillis, and suggested that they might, perhaps, be of gonorrheal origin, but this was not proved.
L. Jacquet3 and Painer4 also described exostoses on the posterior calcaneal surface, but were unable to determine the etiologic factor.
Ely5 refers to a condition he names "gonorrheal foot," and states:
WINTHROP GJ. GONORRHEAL EXOSTOSIS OF THE OS CALCIS: REPORT OF CASES. JAMA. 1909;LIII(9):715–716. doi:10.1001/jama.1909.92550090051003
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