Enhanced Utility and Operative Efficiency of the Novel Push-to-Spin Handheld (P2S) Fat Graft Processing Device
Shawn J. Loder, MD, Phoebe Lee, BS, Lauren Kokai, PhD, Beth R Gusenoff, Jeffrey A Gusenoff, MD
University of Pittsburgh, Pittsburgh, PA, USA
Introduction: Small volume fat graft efficiency is a critical determinant of the cost- and material effectiveness of aesthetic fat grafting in both the operative and clinical space. While several techniques have been described, recent development of devices such as the Push-to-Spin (P2S) system have improved upon the process by yielding a rapid, handheld, multi-use system to minimize operative time and mess. Here we described further technical innovations on the P2S prototype which further improve operative ease-of-use and minimize operative time without sacrificing adipose viability or yield.
Methods: Abdominoplasty samples from elective body contouring procedures was obtained as discarded tissue. Lipoaspirate was collected utilizing a 3.0 mm liposuction cannula was collected and processed via 1 of 3 techniques: centrifugation (Coleman technique), the P2S benchtop (P2S-B) or the novel P2S handheld device (P2S-H). Operative processing time, spin-time, oil fraction, SVF yield and viability, and adipocyte viability were assessed to compare both efficacy and viability of each device/technique in a clinically relevant setting.
Results: Both P2S devices processed adipose significantly faster versus Coleman processing (p<0.05). The novel P2S-H device was additionally significantly faster vs. the benchtop prototype (p<0.05). Oil yield increased significantly time and number of rotation. Purification was not significantly different between the two P2S devices. No significant difference in SVF or adipocyte viability was noted between the two P2S devices.
Conclusion:: The technical advancements to the P2S system which enable single-unit, handheld operation significantly improve operative time with the additional benefit of not requiring a stand or separate workspace for processing. This operative quality of life improvement comes at no cost to efficacy of oil extraction, cellular yield, or cell viability.
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