title: A comparative study of the extensor force of the quadriceps between subjects with a normal patella and those with patella alta of neurological pathogenesis.
abstract: The authors examined 20 subjects with infantile cerebral palsy, 10 of whom had patella alta, in order to evaluate any difference of extensor force of the quadriceps in the various degrees of flexion of the knee as compared with normal subjects. The objective was to reveal and measure any functional differences between the two groups.
authors.affiliation: IIa Clinica Ortopedica dell'Università La Sapienza, Roma.
authors.forename: C
authors.initials: C
authors.lastname: Villani
authors.forename: A
authors.initials: A
authors.lastname: Billi
authors.forename: G F
authors.initials: GF
authors.lastname: Morico
authors.forename: D
authors.initials: D
authors.lastname: Bonsignore
mesh_terms: D001696:Biomechanical Phenomena; D002547:Cerebral Palsy / Q000473:pathology / Q000503:physiopathology*; D006801:Humans; D009132:Muscles / Q000473:pathology / Q000503:physiopathology*; D010329:Patella / Q000473:pathology / Q000503:physiopathology*; D013848:Thigh / Q000473:pathology / Q000503:physiopathology*