Evaluation Of The Efficacy Of Injected Fat Transplantation In Rhinoplasty By Creating Micro-wounds In Dorsal Periosteum

Objective: To evaluate the efficacy of injected fat transplantation in rhinoplasty by creating micro-wounds in dorsal periosteum in an attempt to improve injected fat survive and anchoring to periosteum.Methods: A total of 65 patients at average age of 30 years were randomly divided into two groups.In experimental group(n=35),micro-wounds were created in dorsal periosteum by punctures using syringe in prior to fat transplantation.In control group,fat was directly injected along surface of dorsal periosteum without micro-wounds creation.An average of 4.4±0.680 and 4.6±0.598 mL of fat in volume,in either experimental group or control group,was injected,respectively.After 6 months,aesthetic outcomes were validated with pre-and postoperative photographs.In addition,improvement in fat uptake and its anchorage to periosteum was evaluated.Patient satisfaction was scored with a 5-point Likert scale.Results: A remarked improvement in nasal shape was observed in individuals from experimental and control groups,respectively.Compared with that in control group,survived fat transplanted along surface of punctured periosteum showed more resistant against push and higher rigidity.Overall,12 of 35 patients(34.3%)in experimental group indicated that they were satisfied with the anesthetic results,a percentage which was significant higher that that 8 of 30patients(26.7%)in control group.No minor irregularities was observed in all patients.Quality of nasal dorsal skin was observed be improved in most patients from experimental and control groups,respectively.Conclusions: Creation of micro-wound along surface of periosteum help to improve injected fat survive and thus patients satisfaction.