title: Assessment of the position of the navicular by three-dimensional magnetic resonance imaging in infant foot deformities.
abstract: As the navicular is unossified in infants with foot deformities, until 5 years old (boys) and 3 years old (girls), it is difficult to give the exact position of hindfoot bones. Magnetic resonance imaging associated with three-dimensional reconstruction allows the visualization of the cartilaginous volume of the bones and the measurement of the relationships of the navicular with the talus. In normal feet, we noted that in the coronal plane the navicular was laterally situated (75%) relative to the talus. In club feet (17 patients), the navicular and the cuboid had a large medial displacement (77%) with a slight pronation movement in the sagittal plane. In suspected skewfoot (seven feet) we noted three cases with a lateral subluxation of the navicular. This objective technique of measurement may be of value for diagnosis and treatment of foot deformities.
authors.affiliation: Department of Paediatric Orthopaedic Surgery, University Hospital of Toulouse, Toulouse, France.
authors.forename: Jean Philippe
authors.initials: JP
authors.lastname: Cahuzac
authors.forename: José
authors.initials: J
authors.lastname: Navascues
authors.forename: Christiane
authors.initials: C
authors.lastname: Baunin
authors.forename: Jérôme
authors.initials: J
authors.lastname: Salles De Gauzy
authors.forename: Eric
authors.initials: E
authors.lastname: Estivalezes
authors.forename: Pascal
authors.initials: P
authors.lastname: Swider
mesh_terms: D016022:Case-Control Studies; D003025:Clubfoot / Q000473:pathology; D005260:Female; D005532:Foot Deformities, Congenital / Q000473:pathology*; D006801:Humans; D007223:Infant; D008279:Magnetic Resonance Imaging / Q000379:methods*; D008297:Male; D011446:Prospective Studies; D012016:Reference Values; D012680:Sensitivity and Specificity; D013628:Talus / Q000473:pathology; D013639:Tarsal Bones / Q000473:pathology*