Cervical Disc Arthroplasty Versus Anterior Cervical Discectomy and Fusion for Incidence of Symptomatic Adjacent Segment Disease

Study Design.Meta-analysis of randomized controlled trials.Objective.To evaluate the reported rate of adjacent segment disease (ASD) of cervical disc arthroplasty (CDA) compared with anterior cervical discectomy and fusion (ACDF).Summary of Background Data.Motion-maintaining technologies such as CDA