Jin J, et al. - In cases of single-level surgery at L4–L5, the incidence of perioperative complication, the difference of cage location, and sagittal alignment were comparatively analyzed by the authors between minimally invasive oblique lateral lumbar interbody fusion (MIS-OLIF) and MIS-direct lateral lumbar interbody fusion (DLIF). By eliminating the risk of unwanted muscle and nerve manipulations, the OLIF technique approach-related perioperative morbidities could be decreased, as revealed by this report of L4/L5 level diseases. Findings disclosed that the cage could be safely placed more posteriorly through the orthogonal maneuver. This approach would lead to better disk and foraminal height restoration.