title: Radiographic study of the size of the first metatarso-digital segment in feet with incipient hallux limitus.
abstract: BACKGROUND
  The aim of this study is to confirm whether the absolute and relative lengths of the first metatarso-digital segment is greater than normal in incipient hallux limitus deformity.
  
  
  METHODS
  In a sample of 144 dorsoplantar radiographs under weightbearing conditions (94 of normal feet and 50 of feet with a slightly stiff hallux), measurements were made of the relative first metatarsal protrusion, the length and width of the first metatarsal and of the proximal phalanx of the hallux, the length of the distal phalanx of the hallux, and the total length of the hallux.
  
  
  RESULTS
  There were significant differences between the two types of feet in the relative first metatarsal protrusion, the width of the first metatarsal, the length and width of the proximal phalanx of the hallux, the length of the distal phalanx, and the total length of the hallux.
  
  
  CONCLUSIONS
  The size of the first metatarso-digital segment could be implicated in the development of hallux limitus deformity.
authors.affiliation: Department of Podiatrics, Centro Docente de Fisioterapia y Podologia, University of Seville, C/Avicena s/n, Seville, Spain.
authors.forename: Pedro V
authors.initials: PV
authors.lastname: Munuera
authors.forename: Gabriel
authors.initials: G
authors.lastname: Domínguez
authors.forename: Jose M
authors.initials: JM
authors.lastname: Castillo
mesh_terms: D000328:Adult; D001837:Body Weights and Measures; D016022:Case-Control Studies; D005260:Female; D020857:Hallux Limitus / Q000000981:diagnostic imaging* / Q000473:pathology; D006801:Humans; D008297:Male; D008682:Metatarsal Bones / Q000000981:diagnostic imaging* / Q000473:pathology; D011859:Radiography; D050277:Toe Phalanges / Q000000981:diagnostic imaging / Q000473:pathology