Range of knee motion in normal neonates.
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.
Broughton
N S
NS
Department of Orthopaedics, Royal Children's Hospital, Melbourne, Australia.
Wright
J
J
Menelaus
M B
MB
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