**9. Conclusion**

Renuvion® technology transfers heat to the subdermis and connective tissue matrix through the ionization and rapid neutralization of helium gas atoms and through passing RF current through the resistance of the tissue (Joule heating). The RF helium plasma technology offers the contemporary, judicious liposuction surgeon a way to abrogate host skin laxity, and coagulate adipose, connective, and vascular tissue, thereby reducing traditional liposuction downtime associated with discomfort, ecchymosis, and edema. It provides an option for body contouring in patients that do not qualify for or want tissue excision, who cannot achieve skin tightening with other modalities or who present with unresolved laxity following excisional procedures. The addition of energy-based technologies to minimize traumatic fatty tissue extraction, expose and contract the total tissue collagen burden is a useful adjunct to enhance traditional liposuction results. The changes in the mechanical behavior of connective and deep dermal tissue from Renuvion® result in thermal collagen denaturation and contraction that beneficially reduces volume and surface area of the soft tissue envelope. This makes it a viable alternative to dermatolipectomy procedures and their concomitant risks, scarring and protracted recovery. Future studies will establish optimal energy levels, treatment time on tissue and objective measures of clinically apparent soft tissue contraction and reduced skin laxity.

## **Acknowledgements**

Many thanks to Shawn Roman for proofreading the section on Physics and mechanics of Renuvion®.

#### **Conflict of interest**

The author has no commercial, proprietary or financial interest in the products or companies described in this chapter.

*Enhanced Liposuction - New Perspectives and Techniques*
