Comparison between 2-level ACDF and 1-level ACCF in Treating Cervical Spondylotic Myelopathy

Chen Wenheng; Guo Tuanmao; Liu Qiang

Abstract：Objective To compare the clinical outcomes between anterior cervical discectomy and fusion(ACDF) and anterior cervical corpectomy and fusion(ACCF)in treating the adjacent two segments cervical spondylotic myelop-athy.Methods 51 patients with cervical spondylotic myelopathy who underwent ACDF and ACCF between June 2009 and March 2014 were enrolled in this study.27 patients underwent ACDF and 24 patients underwent ACCF.We recor-ded operative time,blood loss,length of hospital stay,complications rates and fusion rates.The JOA score,VAS pain score,NDI index and Cobb angle data were obtained.Results In ACDF group,the mean follow-up was(30.2±10.5) months.The average operation time was(83.5±15.7)min.The average operative blood loss was(135.5±21.4)mL.The complications rates was 14.8%.The fusion rates was 88.9%.The average postoperative JOA score,VAS pain score,NDI index and Cobb angle improved significantly.In ACCF group,the mean follow-up was(28.3±12.1)months.The average operation time was(118.3±20.9)min,the average operative blood loss was(329.3±70.2)mL,the complications rates was 16.7%,the fusion rates was 91.7%.The average postoperative JOA score,VAS pain score,NDI index and Cobb an-gle improved significantly.No significant differences were found between 2 groups with respect to VAS pain score,NDI index and JOA score.The operation time、operative blood loss and postoperative Cobb angle of ACDF group was better than that of ACCF group.Conclusion 2-level ACDF has better outcomes compared with 1-level ACCF in treating adja-cent two segments cervical spondylotic myelopathy.It has shorter operation time,less bleeding and better Cobb angle.