Mesenchymal stem cells can be derived from bone marrow or adipose tissue5. Most research has been performed on bone marrow-derived stem cells but the past years a series of studies have been published showing promising effect of Adipose-derived mesenchymal stem cells (AMSCs). By using AMSC a large amount of cells can be harvested from a small volume of tissue thereby avoiding the costly and time consuming process of expanding the cells in culture5,9. Abdominal adipose tissue has been shown to have a 1000 times higher concentration of AMSC than other investigated adipose tissue9. This opens for the possibility of a one-step procedure where cells are harvested and injected during one visit in the outpatient clinic. The optimal dose of AMSC is unknown but the effect seems to be dose-dependent with doses around 1.0 x 108 AMSCs per injection being desirable5,9. The stromal vascular fraction of abdominal Adipose tissue is a rich source of adipose derived mesenchymal stem cells.