System and methods for improved access to vertebral bodies for kyphoplasty, vertebroplasty, vertebral body biopsy or screw placement

摘要

A method for providing access to the interior of a pedicle for a desired transpedicular procedure including the step of positioning a cannula through a drilled opening in the posterior cortex of the pedicle, the cannula having an inner section positioned in the opening and an enlarged outer section extending from the cortex. The outer section having a longitudinal slot which enables an instrument that is straight or angled to be inserted through the slot and into the pedicle for a surgical procedure.