Spinal fusion-hardware construct: Basic concepts and imaging review

Figure 4 Antero-posterior (A) and lateral digital radiographs (B) of the lumbosacral spines with posterior lumbar interbody fusion showing LV3 through SV1 levels laminectomies with 2 metallic marks denoting insertion of radiolucent intervertebral disc spacers. Note the posterior mark is at least 2 mm anterior to posterior border of adjacent vertebral body at LV3-4 level.