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Differential rates of intravascular uptake and pain perception during lumbosacral epidural injection among adults using a 22- gauge needle versus 25-gauge needle: A randomized clinical trial
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Inadvertent intravascular injection has been suggested as the most probable mechanism behind serious neurological complications during transforaminal epidural steroid injections. Authors believe a smaller gauge needle may lead to less intravascular uptake and less pain.
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