Diego Arath Torres Garrido

Three-dimensional (3D) printing and regenerative medicine have revolutionized orthopedic trauma reconstruction by introducing personalized, biomimetic, and biologically active solutions for complex skeletal injuries. This multicenter study, conducted in Mexico, Colombia, and Ecuador, evaluated the clinical, functional, and radiological outcomes associated with the use of 3D-printed implants and regenerative scaffolds compared to conventional reconstruction techniques. A quantitative, cross-sectional, and analytical design was applied to 128 patients who underwent reconstructive surgery following post-traumatic bone defects. Participants were divided into three groups: 3D-printed implants, regenerative scaffolds with bioactive components, and conventional grafts. Statistical analyses included descriptive and inferential methods, with significance established at p < 0.05. Results demonstrated that patients treated with 3D-printed implants achieved the highest bone healing rate (91–94%), superior functional recovery (LEFS = 88 at 12 months), and the greatest radiological integration index (0.93), while also exhibiting the lowest rates of infection (3.5%), implant failure (2.0%), and nonunion (4.5%). Regenerative scaffolds also yielded favorable outcomes, with healing rates of 85–90% and an integration index of 0.88, confirming their strong osteogenic and angiogenic potential. In contrast, conventional grafts presented inferior results, with higher complication rates (infection 7.5%, nonunion 12%) and lower integration (0.76). The findings validate the biomechanical and biological advantages of additive and regenerative technologies, demonstrating their feasibility and scalability within Latin American healthcare systems. This study concludes that the combination of 3D printing precision and regenerative bioactivity represents a paradigm shift in trauma reconstruction—offering safer, faster, and more patient-specific therapeutic outcomes that redefine the future of personalized orthopedic medicine.

This study analyzes the scientific, ethical, and regulatory dimensions of next-generation regenerative approaches in aesthetic surgery within Mexico, Colombia, and Ecuador. The objective was to evaluate the effectiveness, safety, and ethical implications of platelet-rich plasma (PRP), stromal vascular fraction (SVF), and adipose-derived stem cell (ADSC) therapies. A hybrid methodology combining the Scientific Method and the Delphi Method was applied, integrating literature analysis, retrospective review of 126 anonymized clinical records, and expert consensus from fifteen specialists. Descriptive statistics were performed to assess demographic trends, patient satisfaction, recovery times, and complication rates. The results revealed that PRP was the most frequently used procedure (42%), followed by SVF (33%) and ADSC (25%), achieving an overall satisfaction level above 4.3 on a 5-point scale. Complications were mild and transient, with no severe events reported. Mean recovery time ranged from 2.3 days for PRP to 4.5 days for ADSC, confirming the minimally invasive nature of these interventions. The Delphi consensus demonstrated over 85% agreement among experts regarding patient safety, informed consent, and ethical communication. In conclusion, regenerative aesthetic surgery has proven to be a safe and effective field that combines biomedical innovation with ethical accountability. These findings emphasize the need for harmonized regional regulations, transparent clinical practices, and continued interdisciplinary collaboration to sustain responsible progress in regenerative medicine and aesthetic care.

Regenerative medicine is transforming aesthetic surgery by shifting its purpose from temporary cosmetic correction to true biological restoration. This multicenter study, conducted in Mexico, Colombia, and Ecuador with 180 participants, evaluated the clinical efficacy, histological performance, safety, and ethical perception of three aesthetic interventions: adipose-derived stem cell (ADSC)-enriched fat grafting, platelet-rich plasma (PRP) therapy, and hyaluronic acid filler. Standardized assessments were carried out at 1, 3, and 6 months, measuring satisfaction, volumetric retention, dermal elasticity, adverse events, histological regeneration, and ethical comprehension using validated instruments. The results demonstrated that ADSC-enriched fat grafting achieved the highest overall outcomes, with a mean satisfaction score of 8.6 ± 0.9, volumetric retention of 72.3%, and superior skin elasticity (0.89 mm), while maintaining the lowest complication rate (28.3%). PRP therapy provided moderate dermal improvement and high safety (38.3% minor events), whereas hyaluronic acid fillers showed reduced durability (28.7% retention) and greater inflammatory response (51.7%). Histological analysis confirmed enhanced angiogenesis, organized collagen alignment, and minimal fibrosis in ADSC-treated tissues. A strong positive correlation was observed between ethical perception and patient satisfaction (r = 0.71, p < 0.001), underscoring the importance of communication and transparency in aesthetic outcomes. Autologous regenerative therapies therefore emerge as superior alternatives, integrating efficacy, biocompatibility, and ethical confidence. The convergence of regenerative biology and bioethical responsibility defines the new paradigm of next-generation aesthetic surgery, merging innovation with integrity to achieve sustainable and patient-centered beauty.