Traumatic SCI is classified into
5 CATEGORIES on the ASIA
IMPAIRMENT SCALE.
ASIA A = COMPLETE, no sensory or motor function is
preserved in sacral segments S4- S5.
ASIA B = INCOMPLETE, sensory, but no motor function
is preserved below the neurological level and
extends through sacral segments.
ASIA C = INCOMPLETE, motor function is preserved
below the neurological level, and the majority
of key muscle groups below neurological level
have a muscle grade of less than 3/5.
ASIA D = INCOMPLETE, motor function is preserved
below the neurological level, & the majority
of key muscle groups below neurological level
have a muscle grade greater than or equal to
3/5.
ASIA E = NORMAL, sensory and motor function are
normal. No evidence of SCI.