As some of the doctors have mentioned, the key to successful fat grafting and graft survival is technique ie. surgeon dependent and not dependent on equipment. I have used traditional methods such as the Coleman technique, as well as PuregrafTMand the Revolve system. (In Singapore, Revolve is no longer available now.) Notably, these systems only affect the post-harvest processing part of fat grafting. What is PuregraftTM?There are 3 critical steps for fat grafting - Fat Harvest, Fat Preparation and Fat Injection. Puregraft helps with the Fat Preparation stage only. After fat harvest, there is a need to process the fat and remove the unwanted parts eg. red blood cells, oil and the infiltration fluid before the fat can be injected. Puregraft is a fat processing device that allows the preparation of the fat grafts after fat harvest. The Puregraf is a close filtration system that allows sedimentation and washing. You can obtain fat ready for grafting subjecting the fats to a centrifuge. The Puregraft system consists of filters that enable you to wash the fat and remove up to 97% of the impurities within a close system. Why do I prefer PuregraftTM? Personally, I like the PuregraftTM system very much because it saves time during the fat processing, typically 30 to 45 minutes per surgery and that to me is the largest advantage of this system. It reduces the anaesthesia time, which translates to a quicker recovery for the patient and also cheaper facility costs. This is significant considering it takes about 2-3 hours using Puregraft vs. 3-4 hours using traditional methods. That’s about a 25% reduction in time. Moreover, the system is sterile and also a closed system hence ensuring higher viability of the grafts. However, the system is single use system and it does add to the costs of the surgery and this is may be a limitation for some patients or surgeons to adopt this device. I do maximise the use of each bag (reusing it up to 3 times during the same surgery) and found no problems. Some studies have shown that the method with the highest survival rate of fat graft is the filtration method using gauze. However, that method is time consuming and not practical for preparation for large grafts amounts e.g. for breast augmentation. The Puregraft system using a series of sieves allows filtration of up to 97% of the contaminants from the collected fat in preparation for fat grafting. In my experience with this system, I have experienced lower incidence of cysts and a 60-70% fat survival consistent with most studies. Hope this short answer explains the difference between PuregraftTM and other traditional methods.Have a great weekend!Dr. Terence GohAZATACA Plastic Surgery