Risser Sign (Skeletal Maturity)
Risser Sign (Skeletal Maturity) - a deterministic tool in Sophie Well's Clinical Scoring & Risk group.
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What this is
Risser Sign (Skeletal Maturity) is one of 230 deterministic tools in Sophie Well's Clinical Scoring & Risk group. Risser Sign (Skeletal Maturity) - 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
Risser JC. The iliac apophysis: an invaluable sign in the management of scoliosis. Clin Orthop. 1958;11:111-119. Read the source ↗
Worked example: Risser grade 5: complete ossification and fusion of the apophysis to the iliac crest; full skeletal maturity.
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