Acceptable Fusion Rate of Single-Level OLIF Using Pure Allograft Combined with Posterior Instrumentation through the Wiltse Approach: A 2-Year Follow-Up Study.

The use of pure allograft in single-level OLIF resulted in an acceptable fusion rate and satisfactory clinical effect at 2-year follow-up. Supplementation of posterior pedicle screw through the minimally invasive Wiltse approach ensured the favorable outcomes both clinically and radiographically.