Katsuura Y, York PJ, Goto R, et al. - Twelve publications that fulfilled the inclusion criteria with a total of 658 patients were involved to discover the distinction in postoperative sagittal alignment when single-level cervical radiculopathy or myelopathy is treated with an anterior cervical discectomy and fusion (ACDF) using a structural graft and plate, a stand-alone ACDF, or a total disc arthroplasty (TDR) and to ascertain whether postoperative sagittal alignment affected clinical outcomes in this patient population. No distinction between treatment arms at each respective time-point or in the overall variation in NDI from preoperative to postoperative was noted. No variance between treatment arms at each respective time point or in the overall change in lordosis from preop to postop was observed. Thus, this review gives evidence that while NDI scores advanced across all devices, no important variation in NDI improvement or C2–7 Cobb angle change between single-level traditional ACDF, stand-alone ACDF, or TDR was seen. However TDR has not been recognized as a lordosis producing operation, this examination exhibits it does not vary significantly in sagittal profile from other cervical fusion techniques. Furthermore, the NDI score got better, irrespective of the device implanted.