LDS, lumbar degenerative spondylolisthesis; PPV, positive predictive value.Adapted from The Spine Journal, Kuhns BD et al, Sensitivity of magnetic resonance imaging in the diagnosis of mobile and nonmobile L4–L5 degenerative spondylolisthesis. Online Ahead of Print, In Press, Corrected Proof, doi: 10.1016/j.spinee.2014.08.006. Accessed 12/8/2014. Copyright (2014), with permission from Elsevier, Inc.