Paraplegia Caused by an Epidural Hematoma in a Patient With Unrecognized Chronic Idiopathic Thrombocytopenic Purpura Following an Epidural Steroid Injection

Study Design. Case report. Objectives. To report a rare case of complicated paraplegia caused by a spontaneous epidural hematoma following an epidural steroid injection in a patient with unrecognized chronic idiopathic thrombocytopenic purpura (ITP) and to review relevant literature and discuss etiology, pathogenesis, and clinical features. Summary of Background Data. A spinal epidural hematoma is a rare but potentially catastrophic complication, which could develop in patients without any risk factors. Some patients with chronic ITP are asymptomatic. To our knowledge there has been no previous report of such a complication. Methods. This is a retrospective review of a case seen at our institution. Results. The authors present a case of a 67-year-old woman who received an epidural steroid injection following complaints of lower back pain and bilateral buttock and leg pain. One day later, the patient had right leg numbness and weakness extending to her right knee; she was taken for emergency surgery. An emergency magnetic resonance imaging revealed an epidural hematoma with high-signal intensity on T2 imaging in the lumbar spinal cord and spinal cord compression with subdural hematoma. One week later, she was progressively developing lower extremity paraplegia with an L1 motor level and no sensory or sphincter activity. She was taken from the emergency room at our institution to the operating room for emergency decompression. After an uneventful course for 1 year, the patient presented with progressive bilateral lower extremity paralysis. Conclusion. Epidural steroid therapy is a commonly used conservative therapy; however, complications could develop in patients without any risk factors. Clinicians who plan an epidural steroid injection must perform a rigorous evaluation through a detailed physical examination, simple laboratory tests, and history taking to prevent various risks associated with spinal cord compression.