Page 301 - Abstract Book KONIKA 18

Neonatology

P-NEO-029
Congenital Dislocation of The Knee: A Case Report

Rieska Yunika Machyar, Indrayady, Afifa Ramadanti
Department of Child Health, Faculty of Medicine Universitas Sriwijaya/Dr. Mohammad Hoesin General Hospital,
Palembang, South Sumatera, Indonesia
Abstract
Background Congenital dislocation of the knee is rare; the estimated incidence is 1 in 100,000 liveborn
infants. The deformities range from simple knee hyperextension to complete knee dislocation, unilateral/
bilateral and may be isolated or associated with other congenital musculoskeletal abnormalities or part of a
syndrome. Objective To describe a rare congenital dislocation of the knee. Case A-23-days-old female baby,
2500gram, spontaneously delivered at 36-weeks-of-gestation, birth-weight 1800gram, with the abnormal
position and hyperextension posture of lower extremities. Her mother had never had a prenatal ultrasound
to evaluate the volume of amniotic fluid level or whether there was oligohydramnios. There was limited
movement of bilateral knee joints; therefore, it was impossible to bend the knee. The general physical
examination, neurologic examination and echocardiography were normal. The baby was consulted to the
orthopedic surgeon and performed closed reduction manipulation with serial plaster casts changed every
week. Conclusion Congenital knee dislocation can be diagnosed easily at birth by physical examination.
Collaboration with orthopedic surgery is needed.
Keywords: congenital dislocation of the knee; congenital knee dislocation; infant; congenital
deformity

rd
Hyperextension After closed reduction After 3 cast
of the knee bilaterally plaster casts

KONIKA XVIII Abstract Book 253