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Autologous fat grafts: a quantitative and morphometric study in rabbits
A Marques1, E Brenda, P H Saldiva
1Division of Plastic and Reconstructive Surgery, Paulista School of Medicine, São Paulo, Brazil.
Summary
Autologous fat graft survival varies significantly by processing method. Dissection yielded the highest fat cell volume at 360 days, highlighting its effectiveness for fat grafting.
Area of Science:
- Regenerative Medicine
- Tissue Engineering
- Plastic Surgery
Background:
- Autologous fat grafting is a common procedure.
- Graft survival is crucial for successful outcomes.
- Standardized processing methods are lacking.
Purpose of the Study:
- To compare the survival rates of autologous fat grafts processed using five distinct methods.
- To determine the optimal method for fat graft preparation.
Main Methods:
- Fat tissue was harvested from rabbits via surgical excision or suction.
- Processing methods included blunt suction, sharp suction, dissection, treatment with culture medium, and lavage.
- Graft survival was assessed histologically and quantified using image analysis at 7, 180, and 360 days.
Main Results:
- Significant differences in fat cell volume were observed among the groups at 360 days (p = 0.003).
- Dissection resulted in the highest percentage of remaining fat cells (45%).
- Blunt suction (14%) and lavage (16%) showed the lowest fat graft survival.
Conclusions:
- The method of harvesting and processing significantly impacts autologous fat graft survival.
- Dissection appears to be the most effective method for preserving fat graft viability.
- Further research may optimize fat grafting techniques.