rest pain with distal tissue loss or doppler ankle pressure less than 40 mmhg2.3 ) have undergone grafting to a crural vessel in the lower third of the calf using 6 mm externally supported ptfe ( impra ) with a vein collar ( 17 % of all lower calf grafts , 9 % of all femoro-distal procedures ) .
C0023216
crural
C0230445
calf