ASIA-IMPAIRMENT GRADING

SUMMARY

- Neurological level: lowest level of intact sensation & anti-gravity muscle function (provided they are normal above).
- Neurological level of injury is the most caudal level at which both the sensory and motor modalities are intact on both sides of the body.

1. ASIA A: Complete injury. No voluntary anal contraction & no sensation at sacral segments (S4-5) & no deep anal sensation.

2. ASIA B: Sensory incomplete. No voluntary anal contraction & motor function > 3 levels below NLI & sensation present anywhere (to any degree) below NLI.

3. ASIA C: Motor incomplete. Voluntary anal contraction & > 50% of motor function < 3 below NLI.

4. ASIA D: Motor incomplete. Voluntary anal contraction & > 50% of motor function > 3 below NLI.

5. ASIA E: intact motor & sensory function.

Reference(s)

Cifu, D.X. (2020). Braddom’s physical medicine and rehabilitation. Elsevier. Get it on Amazon.
Cuccurullo, S. (2019). Physical medicine and rehabilitation board review. New York: Demosmedical. Get it on Amazon.
O’Young, B., Young, M.A. and Stiens, S.A. (2008). Physical Medicine and Rehabilitation Secrets. Mosby. Get it on Amazon.