ABSTRACTImmediate correction of neurologic deficits due to herniated disc disease following percutaneous laser disc decompression (PLDD) has not previously been reported. In a review of 182 cases of herniated intervertebral disc disease with radicular pain syndromes, the author observed a high percentage of return of absent ankle and knee jerk reflexes, return of straight leg raising to normal, and a change of the characteristic rolling to one side, bending the knees, and propping up with the hands as the usual maneuver to change from a supine to a sitting position ("Choy sign") to an ability to sit up directly by trunk flexion, immediately, and at 1 day after PLDD. The neurophysiologic implications are discussed.
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