Fat Embolism Syndrome With Cerebral Fat Embolism Associated With Long-Bone Fracture
Fat embolism syndrome (FES) is a well-known sequela of long-bone fracture and fixation. FES most commonly affects the pulmonary system. Brain emboli may lead to a symptomatic cerebral fat embolism (CFE), which is devastating. In this article, we review the presentation, causes, and management of FES presenting with CFE, report a case, and review the literature. The case involved an otherwise healthy 42-year-old woman who developed CFE after reamed intramedullary nail fixation of femoral and tibial shaft fractures during a single operation. When the patient presented after surgery, she was nonverbal and was having diffuse extremity weakness. The diagnosis was stroke and resultant diffuse encephalopathy secondary to CFE. Within days of urgent management, the patient’s cognitive and ophthalmologic deficits were substantially improved. Six months after surgery, cognitive and ophthalmologic recovery was excellent, and the fractures were healing with good functional recovery in the affected limb.
Conclusion
FES and CFE are potential devastating sequelae of both long-bone fracture and long-bone instrumentation. It is important to recognize these entities in the acute setting and to consider them in the differential diagnosis of a trauma or postoperative patient who experiences sudden onset of altered mental status with or without dyspnea or a petechial rash. If CFE is suspected, early advanced imaging (including urgent MRI) should be obtained with rapid involvement of a multidisciplinary team that can optimize the chance for successful recovery of both neurologic and physical function. The best treatment, early prevention and diagnosis, maximizes care of symptoms. As is evidenced in this case report, rapid diagnosis and treatment often result in recovery from a majority of the symptoms of FES and CFE.
Am J Orthop. 2016;45(7):E515-E521. Copyright Frontline Medical Communications Inc. 2016. All rights reserved.
