27 March 2024 : Case report
[In Press] Congenital Dislocation of the Knee in the Delivery Room
Congenital defects / diseases
Benjiman J. Wilebski 1ABCDEF, Ambereen Alam2DEF, Russell R. Lambert3DEF, Miltiadis Douvoyiannis 4ABCDEFGDOI: 10.12659/AJCR.943725
Am J Case Rep In Press; DOI: 10.12659/AJCR.943725
Available online: 2024-03-27, In Press, Corrected Proof
Publication in the "In-Press" formula aims at speeding up the public availability of the pending manuscript while waiting for the final publication. The assigned DOI number is active and citable. The availability of the article in the Medline, PubMed and PMC databases as well as Web of Science will be obtained after the final publication according to the journal schedule
Abstract
BACKGROUND
Congenital dislocation of the knee (CDK) is rare and can cause significant distress in the delivery room to parents and to healthcare providers, especially if the latter are unaware of this condition. It may not be detected by prenatal ultrasound and can be either an isolated finding or associated with other anomalies such as developmental hip dysplasia and genetic syndromes such as Larsen syndrome. Because of the risk of development of contractures, immediate referral to a specialized provider is needed. Poor prognostic factors include an association with a genetic syndrome, limited knee flexion related to severe quadriceps retraction, and absence of anterior skin grooves. A satisfactory outcome can be anticipated in isolated cases with easy reducibility of the knee.
CASE REPORT
A term baby presented unexpectedly with left knee dislocation after delivery. The providers, unaware of the condition, immediately consulted the orthopedic service, who assisted in the diagnosis, and appropriate management was initiated. The baby had serial casting of the leg, which was applied for almost 3 months, with excellent results on the clinical examination.
CONCLUSIONS
CDK is a rare finding. The diagnosis is primarily clinical and radiographs are used to confirm and assess the degree of the dislocation. The degree of dislocation is important for management and prognosis. Interventions ranging from serial casting to surgery are required as soon as possible. As the CDK can be associated with genetic syndromes or other dysplasias such as developmental dysplasia of the hip and talipes equinovarus, further evaluation for these conditions is warranted.
Keywords: Knee Dislocation; Congenital; Diagnosis; Classification; Treatment
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