Abstract: objective To evaluate the therapy for inferior genicular arterial occlusive disease. Methods 71（101 limbs）patients with infrapopliteal artery ischemia were divided into two groups according to their therapy. Group I were treated with PTA；group II were only drug treatment. Their clinical features, ABI, clinical results, cumulative patency were collected and analyzed statistically. Results In this sudy, the average increased ABI is 0.52±0.04 in group I, 0.04±0.01 in group II at 14-day after-therapy. The degrees of increase had significant difference between two groups (P＜0.05). In group I, The arterial cumulative patency rate was 88.5% at 1-year, 65.2% at 2-year postoperatively, respectively. The secondary arterial patency rate was 96.2% at 1-year, 83.3% at 2-years postoperatively, respectively. The limb salvage rate was 100%. Conclusion PTA is a feasible, safe, and effective procedure, and it should be recommended as the first choice for patients with critical infrapopliteal limb ischemia. But the long term patency needs to be observed in the future.

Key words: Inferior genicular artery, Critical limb ischemia, Percutaneous transluminal angioplasty