Salter-Thompson classification of Perthes disease

Changed by Yuranga Weerakkody, 5 Apr 2016

Updates to Article Attributes

Body was changed:

Salter-Thompson classification for Legg-Calve-Perthes disease simplifies the Catterall classification into 2 groups. Based on the radiographic crescent sign, we can distinguish:

  • Groupe Agroup a: iIncludingncluding Catteral groups I and II, where the crescent sign involves less than 50% of the femoral head.
  • Groupe Bgroupe b: Including including Catterall groups III and IV, where the crescent sign involves more than 50% of the femoral head.
  • -<strong>Groupe A: </strong>Including Catteral groups I and II, where the crescent sign involves less than 50% of the femoral head.</li>
  • +<strong>group a: i</strong>ncluding Catteral groups I and II, where the crescent sign involves less than 50% of the femoral head.</li>
  • -<strong>Groupe B:</strong> Including Catterall groups III and IV, where the crescent sign involves more than 50% of the femoral head.</li>
  • +<strong>groupe b:</strong> including Catterall groups III and IV, where the crescent sign involves more than 50% of the femoral head.</li>

References changed:

  • 1. Salter RB, Thompson G. Legg-Calvé-Perthes disease. The pronostic significance of the subchondral fracture and a two-group classification of the femoral head involvment. J Bone Joint SurgAm1984;66:479-89
  • Salter RB, Thompson G. Legg-Calvé-Perthes disease. The pronostic significance of the subchondral fracture and a two-group classification of the femoral head involvment. J Bone Joint SurgAm1984;66:479-89

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