Fig. 2From: Comparison of SDSG and CARDS classifications for L5/S1 lumbar degenerative spondylolisthesis: an independent inter- and intra-observer agreement studyDiagram of CARDS classifications. a Type A, advanced collapse of L4/5 disk space and contact of adjacent endplates. b Type B, disk space partially preserved wish translation < 5 mm. c Type C, vertebral translation > 5 mm. d Type D, kyphotic alignment of L4/5Back to article page