Current Insights into Post-Traumatic Lymphedema

Post-traumatic lymphedema (PTL) is a chronic and often under-recognized sequela of soft tissue trauma, leading to persistent swelling, functional impairment, and increased risk of infection. While lymphedema is traditionally associated with oncologic interventions, growing evidence highlights the significant burden of PTL in trauma patients. This review provides a comprehensive analysis of the current understanding of PTL, including epidemiology, risk factors, pathophysiology, diagnostic modalities, and treatment strategies. PTL often occurs after high-impact musculoskeletal injuries (such as open fractures with significant soft tissue loss) or burns (especially if deep or circumferential). This risk is increased if injury occurs at critical areas of increased lymphatic density (such as anteromedial leg, medial knee, medial thigh, medial elbow, or medial arm). Advances in imaging techniques, including indocyanine green lymphography and magnetic resonance lymphangiography, have improved early detection and classification of PTL. Management approaches range from conservative therapies, such as complete decongestive therapy (CDT), to surgical interventions, including lymphaticovenous anastomosis (LVA), vascularized lymph node transfer (VLNT), and vascularized lymph vessel transfer (VLVT)/lymph-interpositional-flap transfer (LIFT). We report on our experience with two patients. At our center, we diagnose and stage PTL with ICG lymphography and trial CDT for 6 months. If there is no significant improvement, we recommend LVA. If there is insufficient improvement after 12 months, we recommend LIFT/repeat LVA/VLNT. We also treat open fractures with significant soft tissue defects with LIFT, as prophylaxis against PTL. PTL remains an underdiagnosed condition, necessitating increased awareness and intervention to prevent long-term disability.