Four-hundred and eight rheumatoid feet are studied. The percentage of talalgia is 3.7%; for inferior exostosis it is 29.6%, and 30.8% for posterior exostosis. Posterior demineralisation is present in 12%, whereas for bony erosion it is 8.1%. Plantar spurs are very closely associated to flattened feet (p less than 0.0001). Likewise a very noticeable statistical association is noted between postero-superior calcaneitis and tarsal arthritis (p less than 0.0001), and calcaneitis was more frequent among marked valgus (p less than 0.001). These results are compared with findings of other works. Therapeutic consequences are evoked.