A new scoring system for Perthes' disease based on combined lateral and posterior pillar classifications

Y. Sugimoto, H. Akazawa, Y. Miyake, S. Mitani, K. Asaumi, K. Aoki, H. Inoue

Research output: Contribution to journalArticlepeer-review

8 Citations (Scopus)

Abstract

We have devised a combined pillar score (CPS) system, based on the lateral pillar (LP) and the posterior pillar (PP) classifications, together with the age at onset of Perthes' disease, and examined its correlation with prognosis. The correlation coefficient of the Catterall classification, LP, PP, and CPS systems with the Stulberg system was 0.39, 0.52, 0.50, and 0.70, respectively. Overall 21 of the 22 hips (95.4%) with a CPS of 0 to 1 point had a good outcome and 12 of the 13 hips (92.3%) with a CPS of 3 points or more had a fair or poor outcome. None with a CPS of 2 points, had a poor outcome. The study shows that an accurate prediction of the prognosis is not possible with the LP classification alone for patients classified as belonging to group B (LP height 50% to 100% of contralateral height). The CPS system does allow accurate prediction of outcome.

Original languageEnglish
Pages (from-to)887-891
Number of pages5
JournalJournal of Bone and Joint Surgery - Series B
Volume86
Issue number6
DOIs
Publication statusPublished - Aug 2004

ASJC Scopus subject areas

  • Surgery
  • Orthopedics and Sports Medicine

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