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article · East African Orthopaedic Journal

Congenital knee dislocation: a case report

In plain language

Congenital knee dislocation is a rare hyperextension deformity characterised by anterior displacement of the tibia that is present at birth, occurring in roughly one in every 100,000 cases. The condition stems from abnormal foetal development during pregnancy, which causes joint instability and ligamentous laxity. It can appear alongside other musculoskeletal malformations, including arthrogryposis and hip dislocations. Diagnosis is primarily clinical and takes place at birth or shortly thereafter. Prompt identification and the provision of appropriate treatment allow affected children to achieve normal functionality and gait. However, when the condition co-occurs with additional congenital malformations, treatment becomes considerably more challenging, which can lead to unsatisfactory outcomes.

Key takeaways

  • Congenital knee dislocation occurs in approximately one out of every 100,000 births.
  • The condition is diagnosed clinically at birth or shortly afterwards based on anterior tibia displacement and hyperextension.
  • Early diagnosis and proper intervention enable children to regain normal gait and joint function.
  • Outcomes may be unsatisfactory when the condition occurs alongside other malformations such as hip dislocations or arthrogryposis.

Why it matters

Congenital knee dislocation is an uncommon birth defect that can severely impair mobility if left untreated. Recognising the condition immediately after birth allows medical teams to intervene early, giving children the best opportunity to develop normal movement and avoid long-term disability, especially in complex cases involving multiple joint malformations.

Commercialisation angle

The abstract does not indicate an application pathway or any commercialisation potential, as it focuses exclusively on the clinical presentation, diagnosis, and general management outcomes of a medical condition.

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Abstract

Congenital knee dislocation is a hyperextension deformity of the knee with anterior tibia displacement present at birth. It is a rare condition that occurs at 1 case per 100,000. It is sometimes associated with other musculoskeletal congenital malformation. It is a result of abnormal fetal development during pregnancy, leading to ligamentous laxity and joint instability. Congenital knee dislocation is usually diagnosed at birth or shortly after. It is mainly a clinical diagnosis. If diagnosed early and appropriate treatment is given the children attain normal gait and functionality. When it is associated with other musculoskeletal congenital malformations such as arthrogryposis and hip dislocations, treatment becomes difficult hence the outcome may not be satisfactory.

Research topics

  • Neurogenetic and Muscular Disorders Research
  • Sarcoma Diagnosis and Treatment
  • Knee injuries and reconstruction techniques

Read the original research

This page summarises published work. The authoritative version sits with the publisher.

DOI: 10.4314/eaoj.v19i1.7

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