Fig. 4From: Clinical and radiographic outcomes of hybrid graft in patients with Modic changes undergoing transforaminal lumbar interbody fusionLumbar lordosis (A): the angle between the upper endplate of L1 and the upper endplate of S1. Segmental lordosis (B): the angle subtended by the superior endplate line of the caudal vertebral body and the inferior endplate line of the cephalad vertebral body. Disc height: average of the anterior (C) and posterior (D) margins of the intervertebral spaceBack to article page