Autologous Adipose-Derived Stem Cells, Platelet-Rich Plasma, and Fibrin Enhance Healing of Mandibular Bone Defects in Swine

The primary aim of this study was to assess the therapeutic effects of autologous platelet-rich plasma and fibrin scaffolds combined with autologous adipose stem cells (ASCs) for critical-size defects in the pig mandible. Fibrin scaffolds supplemented with calcium hydrogen phosphate and platelet-derived growth factors were hypothesized to accelerate healing in porcine mandible bone compared to ASC-only injections and untreated controls. Three treatments included the use of autologous ASCs from liposuction with the addition of platelet-rich plasma, fibrin scaffolds, or as cell-only controls. All three treatments using ASCs were determined to increase bone mineral density and bone volume fraction compared to untreated controls. In general, the addition of both platelet-rich plasma and fibrin scaffolds to autologous ASCs from liposuction improved bone healing of critical-size defects.