Table I.

Characteristics of patients

Group	Number of patients	Age range	Symptoms	Cause of CLI	Peripheral arterial duplex scanning of the affected limb	Past medical history	Further surgical or endovascular treatment options	Average duration of ischemia symptoms	Duration and localization of non-healing ischemic ulcers
1	16 (5 women and 11 men)	44 to 80 years (mean age 66.75)	Rest pain for at least 12 months and ulcer/gangrene	AO	Superficial femoral or popliteal artery occlusion	Unsatisfactory femoro-popliteal bypass implantation in 14 patients Failed endovascular procedure in 2 patients Minor surgical debridement in 3 patients	No	30 months (12–48 months)	6–15 months: forefoot in 4 patients heel and toes in 5 patients toes in 7 patients
2	16 (6 women and 10 men)	40 to 85 years (mean age 68.3)	Rest pain for at least 12 months and ulcer/gangrene	AO	Superficial femoral or popliteal artery occlusion	Unsatisfactory femoro-popliteal bypass implantation in 12 patients Failed endovascular procedure in 4 patients Minor surgical debridement in 4 patients	No	25 months (12–31 months)	9–14 months: forefoot in 5 patients heel and toes in 3 patients toes in 8 patients