[Remarks on classification of Perthes disease]

Area of Science:

• Pediatric Orthopedics
• Radiology
• Skeletal Dysplasias

Background:

• Perthes disease, a childhood hip disorder, requires accurate classification for effective treatment.
• Existing classification systems for Perthes disease have limitations in reproducibility and correlation with outcomes.

Purpose of the Study:

• To present and evaluate commonly used Perthes disease classifications.
• To highlight the advantages and disadvantages of each classification system.
• To introduce the Herring classification as a potentially superior method.

Main Methods:

• Review of existing literature on Perthes disease classifications.
• Analysis of the Herring classification (1992) proposed by Herring et al.
• Evaluation of radiographic interpretation, reproducibility, and correlation with treatment outcomes.

Main Results:

• The Herring classification demonstrates ease of interpretation from anteroposterior (a-p) hip radiographs.
• The Herring method exhibits high reproducibility among clinicians.
• A strong correlation exists between lateral pillar height, as assessed by the Herring classification, and the final treatment results.

Conclusions:

• The Herring classification is a highly useful tool for assessing Perthes disease.
• Its ease of use and strong predictive value support its wide adoption.
• Widespread utilization of the Herring classification could lead to standardized treatment protocols for Perthes disease.