Spine
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We document a giant spinal extradural arachnoid cyst treated by selective closure of the dural defect. It was diagnosed using cinematic magnetic resonance imaging (cine-MRI). ⋯ Selective closure of the dural defect based on cine-MRI will be useful for treating extradural arachnoid cysts.
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Retrospective study of pressure-controlled discography (PCD) in patients with chronic low back pain (CLBP). ⋯ Discography should be performed under pressure control, as doing so allows the pain threshold of discs to be quantified, and the probability that a disc is false-positive estimated.