Phantom Sensations During Spinal Anesthesia

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Abstract
One hundred patients for elective surgical procedures were given tetracaine spinal anesthesia and observations were made in regard to time of injection, onset of motor blockade and limb position before and after blockade. Twenty-four patients experienced a painless phantom sensation which was directly related to the position of their limbs at the time of the motor blockade. Seventy-three patients were supine with outstretched limbs at the time of onset of motor blockade and did not experience phantoms. Three patients had subarachnoid sacral block, did not lose proprioceptive function and did not have phantom sensations.

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