title: Measurement of soft tissue elasticity in the congenital clubfoot using scanning acoustic microscope.
abstract: To compare the soft-tissue elasticity between the medial, lateral, and posterior aspects, the deltoid and calcaneofibular ligaments, and the medial, lateral, and posterior capsular tissues were collected from 27 feet of 16 congenital-clubfoot patients. The tissue sound speed, which closely correlates to the Young's modulus, was measured using a scanning acoustic microscope. Contrary to our expectations, lateral ligament showed a significantly higher sound speed than medial ligament (P=0.0023). Lateral capsule also showed a higher sound speed than the medial one (P=0.0338). The results of the study indicated that the lateral soft tissues including the ligaments and capsule underwent severe contracture in congenital clubfoot.
authors.affiliation: Department of Orthopaedic Surgery, Tohoku University School of Medicine, Sendai, Japan.
authors.forename: Koshi
authors.initials: K
authors.lastname: Hattori
authors.forename: Hirotaka
authors.initials: H
authors.lastname: Sano
authors.forename: Yoshifumi
authors.initials: Y
authors.lastname: Saijo
authors.forename: Atsushi
authors.initials: A
authors.lastname: Kita
authors.forename: Masahito
authors.initials: M
authors.lastname: Hatori
authors.forename: Shoichi
authors.initials: S
authors.lastname: Kokubun
authors.forename: Eiji
authors.initials: E
authors.lastname: Itoi
mesh_terms: D000843:Ankle Joint / Q000000981:diagnostic imaging / Q000473:pathology / Q000503:physiopathology*; D002675:Child, Preschool; D003025:Clubfoot / Q000000981:diagnostic imaging / Q000473:pathology / Q000503:physiopathology* / Q000601:surgery; D004548:Elasticity; D005260:Female; D051445:Fibrocartilage / Q000000981:diagnostic imaging / Q000473:pathology / Q000503:physiopathology*; D006801:Humans; D017746:Joint Capsule / Q000000981:diagnostic imaging / Q000473:pathology / Q000503:physiopathology*; D008023:Ligaments, Articular / Q000000981:diagnostic imaging / Q000473:pathology / Q000503:physiopathology*; D008297:Male; D033401:Microscopy, Acoustic / Q000379:methods*