title: Range of knee motion in normal neonates.
abstract: Fifty-seven normal neonates were examined at birth and at 3 and 6 months (to within 7 days). Range of knee motion and of hip flexion contracture were measured. Mean knee flexion contracture was 21.4 degrees at birth, reducing to 10.7 degrees at 3 months and 3.3 degrees at 6 months. Decreasing range of knee flexion was noted in the same period. The natural history of normal knee motion is important in interpreting findings in patients with neuromuscular disorders.
authors.affiliation: Department of Orthopaedics, Royal Children's Hospital, Melbourne, Australia.
authors.forename: N S
authors.initials: NS
authors.lastname: Broughton
authors.forename: J
authors.initials: J
authors.lastname: Wright
authors.forename: M B
authors.initials: MB
authors.lastname: Menelaus
mesh_terms: D006621:Hip Joint / Q000502:physiology; D006801:Humans; D007231:Infant, Newborn / Q000502:physiology*; D007719:Knee Joint / Q000502:physiology*; D016059:Range of Motion, Articular; D012016:Reference Values