Gabriel de Almeida Arruda Felix, Felipe Contoli Isoldi, Marcelo Oliveira Mourão Filho, Lydia Masako Ferreira
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引用次数: 0
Abstract
Background: Intramuscular fat grafting has gained popularity in plastic surgery to enhance muscle volume and definition. However, the safety and standardization of this technique remain controversial. This systematic review and meta-analysis aimed to evaluate the complications, safety, and outcomes of intramuscular fat grafting.
Methods: This systematic review followed the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) guidelines and was registered with the International Prospective Register of Systematic Reviews (PROSPERO). A comprehensive literature search was performed across multiple databases including EMBASE/Elsevier, Cochrane, Scopus, PubMed/Medline, BVS, SciELO, and Lilacs. This search covered all years and languages. The included studies were assessed for risk of bias using the Risk of Bias in Nonrandomized Studies of Interventions (ROBINS-I) tool to ensure methodological rigor. A total of 36 studies were selected for qualitative synthesis.
Results: The meta-analysis included 27 studies with 208,692 observations and 857 events. Among those specifying the target muscle, 25% injected the gluteus, 8.3% targeted the rectus abdominis, and 5.6% targeted the gastrocnemius and soleus. The pooled complication rate was 6.2% (95% CI: 3.06%-12.13%), with substantial heterogeneity among the studies (I² = 98.3%). The most common complications included fat embolism, infection, seroma, hematoma, fat necrosis, asymmetry, and revision surgery. Fat embolism was the most serious complication, with a mortality rate of 1:3,000 cases of gluteal intramuscular fat grafting.
Conclusion: Intramuscular fat grafting offers aesthetic benefits but poses risks, notably, fat embolism. Advancements like ultrasound guidance enhance safety, but further research is needed to refine techniques and establish evidence-based guidelines.
期刊介绍:
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