The primary aim of the trial is to compare ( @ ) the patency rate ( primary , primary assisted , and secondary patency at @ and @ months ) , ( @ ) improvement of quality of life , ( @ ) clinical improvement ( at least @ Rutherford category ) , and ( @ ) wound healing and limb salvage in patients presenting with critical limb ischemia ; secondary aims include ( @ ) cost-effectiveness by factoring procedure and hospital admission costs including rehabilitation , readmission , and reintervention costs , ( @ ) amputation-free survival , ( @ ) reintervention rate , and ( @ ) @-day operative mortality , morbidity , and wound and access complications .