Under the Expansion of Minimally Invasive Lumbar Interbody Fusion Channel Percutaneous Pedicle Screw Fixation of Lumbar Spondylolisthesis

Zhang Dong; Chen Jinzhong

Abstract：Objective Expansion of minimally invasive percutaneous interbody fusion under channel pedicle screw fixa-tion in the treatment of spondylolisthesis in the clinical disease and application value. Methods Minimally invasive lumbar interbody fusion under expansion channel percutaneous pedicle screw fixation of spondylolisthesis in 12 cases,operations were carried out under general anesthesia,the prone position,spinous process for the 1 ~ 2 cm small incision,The minimally invasive expansion of the channel in the intervertebral fusion cage implantation after percutaneous pedicle screw fixation pulling vertebra reduction. After periodic review of X-ray film to observe the stability of a fixed segment,and fusion rate. Results After 12 ca-ses were followed up for 6 to 12 months,an average of 8 months. Slippage are fully reset,no bone graft and fusion. Segmental fixation stability,lumbar intervertebral height and lordosis have been rebuilding and maintaining good,does not appear fracture fixation,loosening and extrusion,without blood vessels,nerve injury. Conclusion Under the expansion of minimally invasive lumbar interbody fusion channel percutaneous pedicle screw fixation of spondylolisthesis,to prevent the spinous process of stripping the muscles and ligaments,lumbar sequence fully restored,good reduction,spinal compression before and after the party has been completely lifted,sliding out of line segment obtained immediately after the stable,low back muscle strength have been protected,can get out of bed early,to facilitate post-operative care and functional training,as a positive and effective ways.