This Classic article is a reprint of the original work by Ignacio V. Ponseti and Jeronimo Campos, Observations on Pathogenesis and Treatment of Congenital Clubfoot. An accompanying biographical sketch on Ignacio V. Ponseti, MD, is available at DOI 10.1007/s11999009-0719-8 and a second Classic article is available at 10.1007/s11999-009-0720-2. This article is 1972 by Lippincott Williams and Wilk...