Abstract
Spinal intradural (subdural and subarachnoid) hematoma following percutaneous kyphoplasty is an extremely rare complication. In this report, we describe a case of subarachnoid hemorrhage with delayed paralysis after kyphoplasty and review the literature on similar cases to describe the complications of kyphoplasty and vertebroplasty (VP). An 80-year-old man underwent percutaneous kyphoplasty at a local hospital an osteoporotic vertebral fracture (OVF) at the T12 and L1 level. On the second day after kyphoplasty for T12 OVF, he developed paralysis of the lower limbs. At his initial visit to our clinic, he had a complete loss of sensation below T11 and complete paralysis of both lower extremities. Thoracolumbar magnetic resonance imaging revealed an intradural hematoma on the ventral side of the spinal cord, in the spinal canal from T5 to T12, compressing the spinal cord. Thoracolumbar computed tomography showed a fracture line in the medial cortex of the right pedicle at T12 and a tract from the spinal canal to the vertebral body. An emergency posterior decompression from T11 to L1 was performed. A small hole was found on the right side of the pedicle at T12, and tear of the nerve and subarachnoid hematoma were observed in the vicinity of the T11 nerve root. The subarachnoid hematomas were removed. Postoperatively, the neurological symptoms improved rapidly. Eventually, he was able to walk and was transferred for rehabilitation. Percutaneous surgery through the pedicle might cause hematoma and bone cement leakage into the spinal canal. This can be a serious complication: hence prevention is important.
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