Which lumbar interbody fusion technique is better in terms of level for the treatment of unstable isthmic spondylolisthesis?

Abstract

Considering the clinical and radiological outcomes in both groups, the authors recommend that instrumented mini-TLIF is preferable at the L4-5 level, whereas instrumented mini-ALIF might be preferable at the L5-S1 level for the treatment of unstable isthmic spondylolisthesis.