title: Rheumatoid flat foot and deformity of the first ray.
abstract: OBJECTIVE
  To study the relationship between flat foot and forefoot deformities in rheumatoid arthritis (RA) in order to improve understanding of the progression of deformity and thus provide more appropriate treatment.
  
  
  METHODS
  Anteroposterior and lateral weight-bearing radiographs were obtained of 308 feet of patients with RA and 202 feet of patients with neck pain (control feet).
  
  
  RESULTS
  In women with RA, we observed with disease duration an increased frequency of flat foot that was correlated with first ray deformity (chiefly metatarsus primus adductus) and severe stages of disability. Flat foot increased very markedly after 3-4 years of disease duration. In control women, flat feet were more frequent after the age of 50 years.
  
  
  CONCLUSIONS
  In RA the inflammatory and mechanical factors leading to foot deformity must receive early medical treatment to avoid progressive hindfoot deformities that lead to disability.
authors.affiliation: Department of Rheumatology, Hĵpital Edouard-Herriot, Lyon, France. scm.rhumatologie-caladoise@wanadoo.fr
authors.forename: Maurice
authors.initials: M
authors.lastname: Bouysset
authors.forename: Jacques
authors.initials: J
authors.lastname: Tebib
authors.forename: Eric
authors.initials: E
authors.lastname: Noel
authors.forename: Thierry
authors.initials: T
authors.lastname: Tavernier
authors.forename: Pierre
authors.initials: P
authors.lastname: Miossec
authors.forename: Jean-Claude
authors.initials: JC
authors.lastname: Vianey
authors.forename: Jean-Pierre
authors.initials: JP
authors.lastname: Duivon
authors.forename: Michel
authors.initials: M
authors.lastname: Bonnin
authors.forename: Chantal
authors.initials: C
authors.lastname: Nemoz
authors.forename: Jocelyne
authors.initials: J
authors.lastname: Jalby
mesh_terms: D000328:Adult; D000368:Aged; D001172:Arthritis, Rheumatoid / Q000150:complications / Q000000981:diagnostic imaging*; D005260:Female; D005413:Flatfoot / Q000000981:diagnostic imaging* / Q000209:etiology; D005531:Foot Deformities, Acquired / Q000000981:diagnostic imaging* / Q000209:etiology; D006801:Humans; D008297:Male; D008682:Metatarsal Bones / Q000000981:diagnostic imaging; D008875:Middle Aged; D011859:Radiography; D013628:Talus / Q000000981:diagnostic imaging; D013640:Tarsal Joints / Q000000981:diagnostic imaging; D013717:Tenosynovitis / Q000000981:diagnostic imaging / Q000209:etiology