Cervical arthroplasty versus anterior cervical fusion for symptomatic adjacent segment disease after anterior cervical fusion surgery: Review of treatment in 41 patients.

•The basic concept of cervical arthroplasty for symptomatic ASD is to preserve the range of motion of cervical spine.•Cervical arthroplasty showed better NDI recovery, faster C2–C7 ROM recovery and lower incidence of ASD than ACDF.•Cervical arthroplasty for symptomatic ASD can be a good alternative treatment option in selected cases.