The purpose of this research study is to find out if it is safe and feasible to improve the appearance and quality of a scar by using a procedure in which adipose tissue (fat) is taken from other parts of your body and injected, or transplanted into a scar. This procedure is called autologous fat transfer (AFT). The main goal of this study is to see if AFT is safe and can improve the quality and appearance of scar tissue. Another main goal is to determine how much tissue should be transplanted to get the best results.