Posterior lumbar interbody fusion for lytic spondylolisthesis: restoration of sagittal balance using insert-and-rotate interbody spacers

This series suggests that PLIF using an insert-and-rotate technique can yield satisfactory clinical outcomes and substantial deformity correction using a posterior only approach and with low levels of serious or permanent complications. Longer-term clinical outcome and comparative studies are required regarding the importance of the restoration of spinal balance.