Fig. 1From: Study of single-level lumbar degenerative diseases treated by unilateral wiltse access with unilateral nail rod fixation assisted by a new automatic retraction deviceIllustrations of a new automatic retractor-assisted unilateral wiltse interval access TLIF procedure combined with unilateral nail bar fixation for single-segment lumbar degenerative disease. A Schematic diagram of the retraction device and the procedure. B Image of the renal peek fusion device. C Illustration of automatic retraction device in surgery. D CT image of unilateral screw fixationBack to article page