Operative Nonunion Rates in Posterolateral Lumbar Fusions: Analysis of a Cohort of 2591 Patients from a National Spine Registry

Discoplasty as a salvage technique for pseudoarthrosis following multilevel TLIFS: A case report

“…The overall 2-year crude probability of operative non-union was 1.08% (95% CI, 0.72–1.56), with 3-level and 4-level fusions showing 1.6 and 3.3 times operative non-union rates compared with 1-level PLF. They also noted trends for operative non-union to be greatest for L5-S1 at all level [5] .…”

“…With modern techniques such as interbody fusions, pedicle screw fixation, and bone graft substitutes, non-union rates are typically in the 0% to 10% range [4] . In a cohort study, multilevel of posterolateral stabilization has been associated with higher risk in developing non-union compared to single level fusion [5] .…”