Fat transplantation for soft tissue augmentation in the lower limbs

Area of Science:

• Plastic Surgery
• Regenerative Medicine
• Histology

Background:

• Early attempts at human fat transplantation date back to 1893.
• The reintroduction of liposuction led to renewed interest in fat grafting.
• Previous studies reported low success rates (20-30%) for permanent fat graft survival.

Purpose of the Study:

• To investigate the efficacy of intramuscular fat injection compared to subcutaneous injection.
• To evaluate adipocyte survival and revascularization in different tissue planes.

Main Methods:

• Review of historical fat transplantation techniques.
• Analysis of outcomes reported in literature concerning subcutaneous fat injections.
• Examination of Jose Guerrerosantos's work on intramuscular fat injections in guinea pigs.

Main Results:

• Subcutaneous fat injection was consistently associated with poor graft outcomes.
• Inadequate perfusion of subcutaneous tissue hinders adipocyte revascularization.
• Intramuscular fat injections in guinea pigs demonstrated significant revascularization and adipocyte survival.

Conclusions:

• The route of fat injection significantly impacts graft survival.
• Intramuscular injection may enhance fat graft viability due to superior tissue perfusion.
• Further research into intramuscular fat transplantation is warranted.