Catterall Classification (Legg-Calvé-Perthes)
Catterall Classification (Legg-Calvé-Perthes) - a deterministic tool in Sophie Well's Clinical Scoring & Risk group.
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What this is
Catterall Classification (Legg-Calvé-Perthes) is one of 230 deterministic tools in Sophie Well's Clinical Scoring & Risk group. Catterall Classification (Legg-Calvé-Perthes) - a deterministic tool in Sophie Well's Clinical Scoring & Risk group.
When to use it
Use this tool when you need a quick, citable reference. Every calculation runs entirely in your browser - no inputs leave your device, no account is required, no AI is involved. The site enforces a strict Content Security Policy and ships no analytics or third-party CDN.
References
Catterall A. The natural history of Perthes' disease. J Bone Joint Surg Br. 1971;53(1):37-53. Read the source ↗
Worked example: Catterall group III: most of the epiphysis involved (the head within a head appearance); more extensive involvement.
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