Spontaneous Diffuse Pyoderma Gangrenosum after Polytrauma and Orthopedic Fixation: A Case Report with Brief Review of Literature.

Introduction: Pyoderma gangrenosum (PG) is a skin condition driven by neutrophil activation resulting in painful ulcers with undermining borders and surrounding erythema. This can be seen, although rarely, post-traumatically. It has been reported in the setting of orthopedic trauma with only 31 cases reported in English literature after orthopedic surgery. Case Report: A 20-year-old Caucasian female presented with multisystem trauma and multiple orthopedic injuries following motor vehicle collision. After fixation of orthopedic injuries, within 1 week post-operatively, the patient began to show signs of wound breakdown characterized by apparent purulence and skin necrosis at surgical sites and subsequently at additional non-surgical sites on bilateral lower extremities. After the failure of aggressive debridement and negative cultures, skin biopsy revealed post-traumatic PG. After diagnosis and treatment with corticosteroid therapy, the patient promptly recovered with the resolution of systemic and musculoskeletal manifestations. Conclusion: Post-traumatic PG should be considered a potential etiology in non-healing wounds with negative cultures. A low threshold for skin biopsy and interdisciplinary involvement should be maintained to expedite diagnosis and guide treatment.