30 - Lumbar fusion for lytic spondylolisthesis: is an interbody cage necessary?

Abstract

BACKGROUND CONTEXT: Many spinal surgeons routinely supplement pedicle screw fixation of lumbar spondylolisthesis with one or two cages. In developing countries, however, the high cost of interbody cages has precluded their use, with surgeons resorting to filling the interbody space with different types of bone graft instead. This retrospective study reports on the clinical and CT outcome of posterior lumbar interbody fusions (PLIF) for low-grade lytic spondylolisthesis using locally-sourced autologous bone graft.