The volume survival of transplanted fat has proved difficult to estimate and our impression is that more fat "takes" and remains stable when Coleman's principles of atraumatic harvesting and transfer are respected .
There is still no agreement concerning the best way of processing the harvested fat prior to reinjection. Our experience with "cotton towel processing" is quite encouraging (Fig. 64.11).
The ideal processing technique should provide viable adipose tissue, with less subsequent absorption of the injected fat, and should be simple, fast and cheap. Cotton towel processing utilizes a sterile operating room cotton towel as an absorption surface, separating fat cells from fluids, oil and debris. When compared with the closed centrifugation technique, operating field drape technique provided equal or better fat quality (less fibrosis), while there was no difference in fat uptake between the methods .
We believe now that centrifugal processing of the harvested fat prior to reinjection may not be necessary.
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