“…The Hartshill horseshoe cage in this study achieves immediate stabilisation, and the screws in the superior and inferior vertebral bodies provide rigid fixation. This instrumentation avoids the need for posterior stabilisation, which is often required with other cages or bone grafts in ALIF procedures [11,21,30]. The cage also prevents the graft sinkage through the vertebral endplates, prevents graft extrusion, opens up the neural foramina and recreates the normal lordosis of the lumbar segment.…”