Autologous Bone Marrow Mononuclear Cell Implantation for Moderate to Severe Peripheral Arterial Disease

The purpose of this study is to evaluate the efficacy of dual intramuscular and intra-arterial autologous bone marrow mononuclear cell implantation for the treatment of patients with moderate to severe peripheral arterial disease in whom amputation was considered the only viable treatment option. Study Hypothesis: Patients with moderate to severe peripheral arterial disease who receive intramuscular and intra-arterial stem cell injections will have improved ankle brachial index (ABI) measurements; relief of rest pain; ulcer healing, if applicable; and absence of major limb amputations.