[Combined spinopelvic fixation with long instrumentation in a patient with multifragmentary sacral injury and multiple lumbar vertebral fractures: Case report and literature review].

Polytrauma refers to significant injuries to three or more points in two or more different AIS anatomical regions along with physiological variables. Polytrauma presents a clinical and therapeutic challenge on its own; however, the combined fracture of the spine and pelvis entails its own set of challenges. In a combined spine and pelvis fracture, we may encounter a spino-pelvic dissociation, which is anatomically characterized by the inability to transmit loads through the spine to the pelvis and consequently to the lower limbs. This interferes with the transmission of axial loads and stability. In this scenario, it has been demonstrated that conventional plates and screws are not sufficient. Faced with this problem, it has been observed that a long posterior fixation can be a good alternative, as it has been shown to provide greater stability and earlier rehabilitation.