Clinical Analysis Of Posterior Lumbar Interbody Fusion Surgery Cage Slip

Objective: To investigate the reason and clinical strategies of Cage slip afterposterior lumbar interbody fusionMethods: Review the data of702patients of the First Affiliated Hospital of FujianMedical University Department of orthopedics2012.1-2014.4posterior lumbaroperation (These cases have complete information and were followed up.),including3cases of postoperative Cage slip, and another4patients achieved thesurgical treatment and had Cage slip in other hospital then visited our hospital，theseseven cases were slipping backwards, The X-ray showed that Cage slip time after1weeks-24weeks, the average time is11.1weeks. There are4males and3females,They were between the ages of32-77years old, the average age is56years old. Thefirst time of preoperative diagnosis:1cases of lumbar II°spondylolisthesis,3casesof lumbar spinal canal stenosis,3cases of lumbar disc herniation. Single segmentfused five cases: where L1-L2segment one case, L4-L5segment section2cases,L5-S1segment two cases; two segments fused two cases, including one case ofL2-L4segment, L4-S1segment of one case. Seven cases of intraoperative data intodepth Cage, Cage and intervertebral bony endplate fit case, the lesion segmentintervertebral height recovery, whether additional factors pedicle screws, Cage frontof graft cases analyzed, combined with relevant literature, discuss and analyze factorscontributing to postoperative clinical countermeasures cage slip posterior lumbarinterbody fusion.Results: The postoperative posterior lumbar interbody fusion surgery Cage Cageand slip into the depths, Cage and intervertebral bony endplate fit case, the lesionsegment intervertebral height recovery, whether additional pedicle screw the size andthe factors Cage, Cage front of graft cases and so on.Conclusion: Strengthening surgical technique training to master all aspects of surgical techniques, and standards are key to avoid slipping after Cage; strengtheninspection and selection of indications of preoperative imaging is to avoid slippingbasis after Cage; surgical and Cage ’s selection and placement skills is an importantpart; simultaneously should focus on the patient’s own bone condition andpostoperative rehabilitation exercises.