Minimally Invasive Posterior Lumbar Interbody Fusion for High-Grade Spondylolisthesis: A Case Report

Abstract

Introduction: We report a case of minimally invasive posterior lumbar interbody fusion for high-grade spondylolisthesis.

Case Report: The patient was an 80-year-old woman with L5/S high-grade lumbar spondylolisthesis, and her Japanese orthopedic association (JOA) score was 11 points. L5/S posterior interbody fusion by in situ fixation was performed because the patient's pelvic incidence-lumbar lordosis mismatch was small. The operation was performed using a transdiscal screw (hereafter referred as TDS), and a bone graft of L5/S was used for holes in the bone of S1 TDS. The patient's JOA score at 2 years postoperatively was improved to 26 points, and bone union was confirmed.

Conclusions: This operation was a minimally invasive and useful method.