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Catterall versus Herring classification in Perthes' disease

F Specchiulli1, L Scialpi

  • 1I Clinica Ortopedica, Università, Bari.

La Chirurgia Degli Organi Di Movimento
|July 1, 1997
PubMed
Summary

The Herring classification shows better reproducibility for predicting outcomes in Perthes disease compared to the Catterall classification, despite Catterall having better predictive value.

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Area of Science:

  • Orthopedics
  • Pediatric Orthopedics
  • Radiology

Background:

  • Perthes disease is a hip condition affecting children.
  • Accurate classification systems are crucial for predicting prognosis.
  • Current systems include Herring and Catterall classifications.

Purpose of the Study:

  • To compare the prognostic value of Herring (lateral pillar) and Catterall classifications for Perthes disease.
  • To assess the reproducibility of both classification systems.

Main Methods:

  • Retrospective study of 45 patients with Perthes disease.
  • Average follow-up of 24 years post-onset.
  • Hips classified by joint congruency (Stulberg).
  • Prognostic value and reproducibility of Herring and Catterall classifications analyzed.

Main Results:

  • Catterall classification showed better overall predictive value than Herring.
  • Herring classification demonstrated superior reproducibility (80%) compared to Catterall (42%).

Conclusions:

  • Herring classification offers more reliable and consistent assessment in clinical practice.
  • Both systems have limitations, but Herring's reproducibility is a significant advantage for Perthes disease management.

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