Objective:

To reach consensus and prioritize the most important assessments, diagnostic classifications, and outcome measures for clinical practice in children and adolescents with Perthes disease.

Approach:

• Study Design: A 3-round modified e-Delphi survey was conducted to gather expert opinions on assessments and classifications related to Perthes disease.
• Participants: International experts in Perthes disease were recruited through academic and clinical networks, focusing on those managing pediatric patients.
• Survey Development: Surveys were developed based on a scoping review, including various assessments and measures relevant to Perthes disease.

Key Findings:

• There is substantial heterogeneity in clinical assessments, diagnostic classifications, and outcome measures used in Perthes disease.
• No standardized approaches exist for assessing or evaluating outcomes in Perthes disease.
• A core outcome set has been developed, but specific methods for assessment were not defined.

Interpretation:

Limitations:

• The Delphi method relies on expert opinion, which may not fully represent all clinical practices.
• The survey may not encompass all potential assessments and classifications used in practice.

Conclusion:

The study aims to reach consensus and prioritize the most important assessments, diagnostic classifications, and outcome measures for clinical practice in children and adolescents with Perthes disease.