Safety and Efficacy of Computer Assisted Surgery for Use in Vascular Surgery Procedures

Inclusion Criteria: * Patients with significant femoropopliteal or tibial occlusive disease not amenable to catheter directed therapy (ie angioplasty/stenting). Symptoms include lifestyle-limiting claudication, rest pain and/or tissue loss. * Patients with an ABI between 0.2 and 0.8. * Femoropopliteal disease visible on color duplex ultrasound (DUS) * Patent and minimally diseased common femoral and proximal superficial artery * Patients with American Society of Anesthesiology (ASA) I, II or III classification * PT/PTT, EKG, HbA1c, liver function, within normal ranges within 30 days prior to procedure or stable over the last 6 months. Current University of Chicago Medical Center Lab standards will be used. Pulmonary function will be assessed as needed by preoperative anesthesia evaluation. (Generally for infrainguinal procedures, pulmonary function is not assessed) * Body Mass Index (BMI) \<40 Exclusion Criteria: * Previous surgery in the inguinal region (ie: prior femoral artery dissection) * Myocardial infarction (MI) within the last 6 months * Laboratory evidence of hypercoagulable state and/or connective tissue disease * Pregnant women * History of non-compliance with medical care