Tator et al developed the Sunnybrook scale for evaluating a patient with spinal cord injury.
|
Motor |
Sensory |
Grade |
|
complete loss |
complete loss |
1 |
|
complete loss |
incomplete loss |
2 |
|
incomplete loss, useless |
complete loss |
3 |
|
incomplete loss, useless |
in complete loss |
4 |
|
incomplete loss, useless |
normal |
5 |
|
incomplete loss, useful |
complete loss |
6 |
|
incomplete loss, useful |
in complete loss |
7 |
|
incomplete loss, useful |
normal |
8 |
|
normal |
incomplete sensory loss |
9 |
|
normal |
normal |
10 |
where:
• Possible patterns not listed: complete motor loss and normal sensory; normal motor and complete sensory loss.
• The MRC scale for muscle power is used to describe incomplete motor loss.
• MRC muscle power level of 1 or 2 below the level of the injury = useless.
• MRC muscle power level of 3 to 4 below the level of the injury = useful.
|
Muscle Strength |
Medical Research Council (MRC) |
|
no contraction |
0 |
|
flicker or trace of contraction |
1 |
|
active movement with gravity eliminated |
2 |
|
active movement against gravity |
3 |
|
active movement against gravity and resistance |
4 |
|
normal power |
5 |
from Brooke
|
Sunnybrook Grade |
Comparable Frankel Grade |
|
1 |
A |
|
2 |
B |
|
3 |
C |
|
4 |
|
|
5 |
C |
|
6 |
D |
|
7 |
D |
|
8 |
D |
|
9 |
D |
|
10 |
E |
from Hegde et al, 1999.
Specialty: Neurology
ICD-10: ,
