AP and lateral dynamic X-rays showing unstable L4-5 spondylolisthesis
Sagittal and axial MRI sections showing severe stenosis at L4-5. Note the severe ligamentous buckling impinging the neural elements posteriorly.
AP and lateral X-rays showing correction of the L4-5 spondylolisthesis with a cage placed through a small access portal by splitting the fibers of the iliopsoas muscle (hip flexor) and percutaneous screws placed between muscle planes with no muscle stripping. This was all done with the patient laying on his side in a lateral position.
Saint Barnabas Medical Center
Formerly St. Luke’s-Roosevelt
Hospital in Manhattan
Formerly Lenox Hill Hospital