Legg-Calvé-Perthes disease: classifications and prognostic factors

Virginie Rampal1, Jean-Luc Clément1, Federico Solla1

  • 1Pediatric Orthopaedic Surgery, Lenval University Children's Hospital, Nice, France.

Insights

Legg-Calvé-Perthes Disease (LCPD) prognosis is influenced by clinical factors like overweight, female sex, older age, and limited hip abduction. Radiological signs and MRI are key for predicting outcomes in pediatric avascular necrosis.

Area of Science:

  • Pediatric Orthopedics
  • Avascular Necrosis Research
  • Biomedical Engineering

Background:

  • Legg-Calvé-Perthes Disease (LCPD) is idiopathic avascular necrosis of the femoral head in children.
  • Treatment decisions rely on predicting femoral head sphericity and hip congruence at skeletal maturity.

Purpose of the Study:

  • To review and highlight prognostic factors for Legg-Calvé-Perthes Disease (LCPD).

Main Methods:

  • A systematic literature search was conducted using PubMed.
  • 33 articles focusing on LCPD prognostic factors and classification were selected.

Main Results:

  • Poor prognostic clinical indicators include overweight, female sex, age over 6 years, and limited hip abduction.
  • Herring's classification is a reliable radiological tool for prognosis.
  • "At-risk" femoral head signs and reduced acetabular-femoral head congruence indicate poor outcomes.

Conclusions:

  • Clinical and radiological factors significantly predict LCPD outcomes.
  • MRI shows promise for assessing hip prognosis in LCPD.
  • Further understanding of LCPD etiology may refine prognosis.
Abstract

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