The comparative impact of body mass index on outcomes following minimally invasive versus open surgery for grade 1 spondylolisthesis: 2-year follow-up from the Quality Outcomes Database

Regardless of approach, patients improved following surgery for grade 1 DLS. Patients with BMI ≥ 30 kg/m2 had better long-term outcomes when treated with an MI surgical approach versus open surgery. This difference in outcomes between MI and open surgery was not observed among patients with BMI < 30 kg/m2.