Obesity and Clinical, Radiographic, and Surgical Outcomes After Minimally Invasive Single-Level Transforaminal versus Lateral Lumbar Interbody Fusion

To determine the effect of obesity on clinical, radiographic, and surgical outcomes after lateral lumbar interbody fusion (LLIF) versus minimally invasive surgery (MIS) transforaminal lumbar interbody fusion (TLIF) and compare the effectiveness of LLIF versus MIS TLIF in treating obese patients. A retrospective comparative analysis of patients who underwent single-level L4-5 LLIF or MIS TLIF over a 7-year period was performed. Spinopelvic parameters were compared based on preoperative and postoperative radiographs. Body mass index (BMI) ≥30 was deemed “high”; BMI