Sciatic Nerve Palsy After Distal Femoral Traction for Vertically Unstable Pelvic Fracture in a Neurologically Intact Patient.

Vertically unstable fractures of the pelvis require a notable amount of energy to cause disruption of the posterior elements of the pelvic ring. Superior migration of the hemipelvis demonstrates the inherent instability of this fracture pattern. Surgical fixation is required in most cases, but while resuscitation efforts are underway, placing the patient in skeletal traction to reduce the hemipelvis is often recommended. Although skeletal traction has been described in many sources, no consensus exists on the amount of weight that should be used. This has led to anecdotal recommendations that vary between institutions. Without clear guidelines for treatment, a vertically translated hemipelvis was overreduced and subsequently sustained a sciatic nerve palsy in a patient who was neurologically intact on presentation. We aim to describe a rare complication of skeletal traction and propose a treatment algorithm to reduce the incidence of future complications.