A neurologic disorder in the brain or spinal cord can affect the use of both upper extremities. The degree of impairment depends on how much function is affected.
Functional parameters:
(1) digital dexterity
(2) ability to grasp and hold things
(3) use of the extremity for activities of daily living
Digital Dexterity
Grasp or Hold
Activities of Daily Living
Grade
normal
normal
normal
0
difficult
able
able
1
none
difficult
able
2
none
unable
difficult
3
none
unable
unable
4
Grade
Whole Person Impairment
0
0%
1
1-19%
2
20-39%
3
40-79%
4
>= 80%
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