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Fig 4. A, Lateral disk herniation compressing the nerve root.
B, The cannula and SpineWand device are positioned under CT guidance and then safely and precisely directed toward the herniation.
C, Note gas from tissue excision diffusing inside the herniation itself.
D, A 4-month CT follow-up shows partial regression of the lesion; the patient reports a definite clinical improvement (Macnab 3).
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