Figure 4From: Minimally invasive presacral approach for revision of an Axial Lumbar Interbody Fusion rod due to fall-related lumbosacral instability: a case report Coronal (A) and sagittal (B) computed tomography (CT) images demonstrating loss of L5-S1 disc space with recurrence of symptoms due to direct sacral impaction following a fall six weeks after the index surgery.Back to article page