Microfragmented Adipose Tissue in Pain Management: Bridging Regenerative Biology and Clinical Therapeutics

Regenerative medicine has emerged as a transformative paradigm in contemporary healthcare, shifting the therapeutic focus from symptomatic management toward the restoration of tissue structure and function through biologically active interventions. Within this framework, adipose-derived products have attracted substantial interest owing to their relative abundance, ease of harvesting, and rich cellular and paracrine composition, including mesenchymal stromal cells, pericytes, and bioactive mediators with immunomodulatory potential. Among these technologies, microfragmented adipose tissue (MFAT) constitutes an innovative, minimally manipulated approach because it preserves the native stromal vascular niche and extracellular matrix architecture while avoiding enzymatic processing. This characteristic not only maintains biological integrity but also facilitates regulatory compliance in multiple jurisdictions. This narrative review provides a comprehensive synthesis of the current evidence on microfragmented adipose tissue in pain management, integrating biological rationale, mechanistic insights, and clinical applications across musculoskeletal disorders and chronic pain conditions. Particular attention is devoted to its capacity to modulate inflammatory pathways, promote angiogenesis, and support tissue regeneration within complex pathological environments. In addition, the review critically appraises the methodological limitations of existing clinical studies, including heterogeneity of design and limited high-quality randomized evidence. Finally, future perspectives are explored, emphasizing the integration of precision medicine approaches, biomarker-driven patient stratification, and combinatorial regenerative strategies to optimize therapeutic outcomes.