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4Discectomy technique

A small (nr 15) blade is used to open the annulus from uncinate to uncinate as close as possible to the endplates.

Pearls

To help stop a slipping blade, a Frasier tip suction is held in place in the direction the blade is cutting.

To prevent accidental durotomy and spinal cord transection, the annulotomy should not go deeper than 11 mm. The sharp edge of the nr 15 blade is 11 mm and can be used as a depth gauge.