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STANDARD NEUROLOGICAL CLASSIFICATION OF SPINAL CORD INJURY
Patient Name ____________________________________
Examiner Name __________________________________ Date/Time of Exam___________________
STANDARD NEUROLOGICAL CLASSIFICATION
OF SPINAL CORD INJURY
(scoring on reverse side)
(distal phalanx of middle finger)
MUSCLE GRADING ASIA IMPAIRMENT SCALE STEPS IN CLASSIFICATION
0 total paralysis The following order is recommended in determining the classification
A = Complete: No motor or sensory of individuals with SCI.
1 palpable or visible contraction function is preserved in the sacral
segments S4-S5. 1. Determine sensory levels for right and left sides.
2 active movement, full range of
motion, gravity eliminated 2. Determine motor levels for right and left sides.
B = Incomplete: Sensory but not motor Note: in regions where there is no myotome to test, the motor level
3 active movement, full range of function is preserved below the is presumed to be the same as the sensory level.
motion, against gravity neurological level and includes the 3. Determine the single neurological level.
sacral segments S4-S5. This is the lowest segment where motor and sensory function is nor-
4 active movement, full range of mal on both sides, and is the most cephalad of the sensory and
motion, against gravity and provides C = Incomplete: Motor function is pre- motor levels determined in steps 1 and 2.
some resistance served below the neurological 4. Determine whether the injury is Complete or Incomplete
5 active movement, full range of level, and more than half of key (sacral sparing).
motion, against gravity and provides muscles below the neurological If voluntary anal contraction = No AND all S4-5 sensory scores = 0
normal resistance level have a muscle grade less AND any anal sensation = No, then injury is COMPLETE.
than 3. Otherwise injury is incomplete.
5* muscle able to exert, in examiner’s 5. Determine ASIA Impairment Scale (AIS) Grade:
judgement, sufficient resistance to be D = Incomplete: Motor function is pre- Is injury Complete? If YES, AIS=A Record ZPP
considered normal if identifiable served below the neurological NO (For ZPP record lowest dermatome or myotome on
inhibiting factors were not present level, and at least half of key mus- each side with some (non-zero score) preservation)
cles below the neurological level Is injury
NT not testable. Patient unable to reliably motor incomplete? If NO, AIS=B
have a muscle grade of 3
exert effort or muscle unavailable for test- (Yes=voluntary anal contraction OR motor
or more. YES function more than three levels below the motor
ing due to factors such as immobilization,
level on a given side.)
pain on effort or contracture. E = Normal: Motor and sensory func-
tion are normal. Are at least half of the key muscles below the
(single) neurological level graded 3 or better?
(OPTIONAL) AIS=C AIS=D
Central Cord If sensation and motor function is normal in all segments, AIS=E
Note: AIS E is used in follow up testing when an individual with a
documented SCI has recovered normal function. If at initial testing
Anterior Cord no deficits are found, the individual is neurologically intact; the
Conus Medullaris ASIA Impairment Scale does not apply.