Disorder of sensation after C7 root resection one week (n = 50) Frequency Percentage (%) Zone 1 + zone 2 36 72% Zone 2 14 28% Zone 2 + Zone 3 0 0% Zone 4 + Zone 5 22 44% Zone 5 28 56% Zone 5 + Zone 6 0 0% After C7 root resection, most of patients complained of palmar and dorsal numbness and tingling of the fingers.