 This is multiplied by a maximum upper extremity impairment for involvement of the suprascapular nerve of 16% which produces a 2% impairment of the upper extremity when the two values are multiplied together, 2% impairment of the upper extremity. 
This is multiplied by a maximum upper extremity impairment for involvement of the suprascapular nerve of 16 % which produces a 2 % impairment of the upper extremity when the two values are multiplied together , 2 % impairment of the upper extremity .