A Novel Nonpedicular Screw-Based Fixation in Lumbar Spondylolisthesis

Figure 3

An illustrative 59-year-old female case demonstrated grade I spondylolisthesis on preoperative image studies. Radiographs 2 days after surgery showed IFD and interbody cage in appropriate positions. However, early migration of interbody cage was noted on the lateral radiograph 6 weeks after surgery.