The Clinical journal of pain
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Randomized Controlled Trial Clinical Trial
False-positive rates of cervical zygapophysial joint blocks.
To determine the false-positive rate of anesthetic blocks of the medial branches of the cervical dorsal rami in the diagnosis of cervical zygapophysial joint pain. ⋯ Uncontrolled diagnostic blocks are compromised by a significant false-positive rate that seriously detracts from the specificity of the test.