Instability Severity Index Score (Shoulder, ISIS)
Instability Severity Index Score (Shoulder, ISIS) - a deterministic tool in Sophie Well's Clinical Scoring & Risk group.
Open the Instability Severity Index Score (Shoulder, ISIS) → Runs in your browser. No signup, no tracking.
What this is
Instability Severity Index Score (Shoulder, ISIS) is one of 230 deterministic tools in Sophie Well's Clinical Scoring & Risk group. Instability Severity Index Score (Shoulder, ISIS) - 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
Balg F, Boileau P. The instability severity index score. A simple pre-operative score to select patients for arthroscopic or open shoulder stabilisation. J Bone Joint Surg Br. 2007;89(11):1470-1477. Read the source ↗
Worked example: ISIS 8 of 10 (score >6): high recurrence risk after arthroscopic Bankart; an open procedure is favored.
Sophie Well is a reference and educational tool. Not medical, legal, or financial advice. Does not replace clinician judgment, professional billing review, or legal counsel.