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neurology emergency-medicine

ASIA Impairment Scale (Spinal Cord Injury)

Classifies completeness of spinal cord injury (SCI) using the American Spinal Injury Association (ASIA) Impairment Scale (AIS).

Score interpretation

AIS A — Complete SCI

→ No sensory or motor function in S4-S5; intensive rehab planning

AIS B — Sensory incomplete

→ Sensory but no motor function below NLI; optimise neuroprotection

AIS C — Motor incomplete

→ Motor function below NLI, >50% key muscles grade <3

AIS D — Motor incomplete

→ Motor function below NLI, >=50% key muscles grade >=3

AIS E — Normal function

→ Sensation and motor normal; may still have SCI history

Interpretation bands for the ASIA Scale. Apply clinical judgement and local guidance.

References

Related

Curated clinical cross-links plus same-class fallbacks.

Decision support only — verify against a current formulary, NICE, or your local guideline before clinical use.