We routinely use Topifoam after Cellulaze treatment, and I think there are several benefits from it's use. You can think of the Cellulaze treatment as creating a potential space under the skin where fluid could collect following a Cellulaze treatment. If fluid did collect, this would be called a Seroma and usually requires treatment by aspiration with needle and syringe - obviously something to be avoided if possible. Since we are already injecting fluid into the tissues as part of the Cellulaze treatment, we want as much of that fluid to come through the small incisions that are made to do the treatment. The topifoam provides focused compression over the treatment area to compress fluid out of the area, much of which "leaks" out of the incision in the first 24 hrs after the procedure.
I also think patients are more comfortable with Topifoam applied over the treatment area. Topifoam is very soft. Most Cellulaze treatments are of the back of the thigh or buttock. It can be pretty unconfortable to sit down for several days after the procedure and I think having Topifoam over the treatment area makes it much less painful. Our experience has been that most patients require a few pain pills during the first couple days after surgery and then do fine. We have patients wear the Topifoam for several days, and then transition to a Spanx type compression garment.