Anterior Lumbar Interbody Fusion Of The Lumbar Spine, Lateral View

Description

Oblique lateral anatomy of the lumbar spine frames an anterior lumbar interbody fusion (ALIF) construct at a single motion segment, with the interbody cage seated between the inferior endplate of the superior vertebra and the superior endplate of the inferior vertebra. The vertebral bodies occupy the anterior column, while the posterior elements (pedicles, laminae, spinous processes, and facet joints) lie posteriorly, defining the spinal canal and posterior tension band. Across the sequence, the cage advances from an anterior approach corridor into the disc space, then seats centrally with its long axis aligned parallel to the endplates. Final positioning is held. Clear. ALIF is chosen to restore disc height and segmental lordosis while avoiding direct posterior canal work, a practical consideration in recurrent radiculopathy after prior laminectomy or in discogenic low back pain with loss of height. The animation clarifies concepts that confuse learners in static views: how the cage spans the apophyseal ring for endplate support, how over-distraction risks endplate violation and cage subsidence, and how slight malposition can translate into foraminal under-restoration or anterior overhang. It also reinforces the anterior versus posterior column relationship in lateral projection, a key mental model when reading postoperative radiographs and CT. Use this clip in orthopedic and neurosurgical spine teaching for ALIF fundamentals, in device and implant education to explain cage footprint and seating, or in radiology training to standardize language around lateral postoperative alignment and implant position. It also fits patient-facing surgical consent materials where the goal is to show where the implant sits relative to the vertebral bodies without exposing operative footage. Anatomical accuracy verified by SciePro's Medical Advisory Board.