• Zhuo Ma, Xun Ma, Huilin Yang, Xiaoming Guan, and Xiang Li.
• Department of Orthopaedics, Shanxi Academy of Medical Sciences & Shanxi DaYi Hospital, No. 99 Long Cheng Street, Taiyuan, 030032, Shanxi Province, China.
• Eur Spine J. 2017 Apr 1; 26 (4): 998-1008.

PurposeThe aim of this study was to compare the efficacy and safety of anterior cervical discectomy and fusion (ACDF) and cervical arthroplasty for patients with cervical spondylosis.MethodsPubMed, Embase, and Cochrane Library were used to search for relevant articles published prior to April 2016 to identify studies comparing ACDF and cervical arthroplasty involving patients with cervical spondylosis. Relative risks (RR) and mean differences (MD) were used to measure the efficacy and safety of ACDF and cervical arthroplasty using the random effects model.ResultsThe meta-analysis of 17 studies involved 3122 patients diagnosed with cervical spondylosis. Patients undergoing ACDF showed lower overall success rate (RR 0.84; 95 % CI 0.77-0.92; P < 0.001), higher VAS score (MD 0.36; 95 % CI 0.08-0.64; P = 0.011), and shorter mean surgical duration (MD -1.62; 95 % CI -2.80 to -0.44; P = 0.007) when compared with cervical arthroplasty. However, the association between ACDF therapy and the risk of mean blood loss (MD -0.16; 95 % CI -0.34 to 0.02; P = 0.082), mean hospitalization (MD 0.02; 95 % CI -0.31 to 0.36; P = 0.901), patient satisfaction (RR 0.96; 95 % CI 0.92-1.00; P = 0.066), neck disability index (MD 0.20; 95 % CI -0.05 to 0.44; P = 0.113), reoperation (RR 1.25; 95 % CI 0.64-2.41; P = 0.514), or complication (RR 1.17; 95 % CI 0.90-1.52; P = 0.242) was not statistically significant.ConclusionsPatients undergoing ACDF therapy tended to exhibit lower overall success rate, higher VAS score, and decreased mean surgical duration when compared with patients treated with cervical arthroplasty.

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