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Mangled Extremity Severity Score (MESS)

Predicts likelihood of eventual amputation in a severely injured limb, to help guide the salvage-versus-amputation decision.

For healthcare professionals.These calculate a score or a measurement from values you enter. They do not diagnose, and they are no substitute for clinical judgement. If you are a patient, discuss any result with your own doctor rather than acting on it.

Skeletal / Soft Tissue Injury

Limb Ischemia

Ischemia duration > 6 hours (doubles the ischemia score above)

Shock

Age

Enter the values above to see the result.

Source

Johansen K, Daines M, Howey T, Helfet D, Hansen ST Jr. Objective criteria accurately predict amputation following lower extremity trauma. J Trauma. 1990;30(5):568-572.

Shown for reference and checked against the source above. Confirm against current guidance before acting on it, and use your own clinical judgement.

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