It was reported that the patient underwent transforaminal lumbar interbody fusion (tlif) at l4/5 both side by intermuscular approach for lumber degenerative spondylolisthesis.Implant 4.75 was used.Post-op, it was confirmed by x-ray that l4 left placed screw was slipped to lateral.As reported by the local distributer, the doctor considered that he would perform a revision surgery.No patient complications were reported in the report.It was reported that l4 screws on both sides dislodged.In revision surgery, both screws were re-inserted in a different direction and the surgery was completed.
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