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| Clinical effect of dynamic cervical implantversus and anterior cervical diskectomy and fusion in the treatment of single-level cervical degenerative disc disease |
| SONG Qi GUO Weichun DAI Guo QIU Bo |
| Department of Orthopedics, Renmin Hospital of Wuhan University, Hubei Province, Wuhan 430060, China |
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Abstract Objective To evaluate clinical outcome of dynamic cervical implant versus (DCI) or anterior cervical diskectomy and fusion (ACDF) in the treatment of cervical spinal cord or cervical spondylotic myelopathy caused by single-level cervical degenerative disc disease. Methods 60 patients with single-level cervical degenerative disc disease in Renmin Hospital of Wuhan University from March 2013 to August 2014 were divided into DCI group (24 cases) and ACDF group (36 cases) according to their different surgical methods. The operation time, bleeding volume, the visual analog scale for neck (VAS-N) and the arm pain (VAS-A), the neck pain and disability scale (NPAD) and the European quality of life scale (EQ-5D), surgery adjacent segmental mobility (flexion and extension angle) and operative segmental cervical vertebra activity (ROM) before after operation were observed. Results The operation time and bleeding volume of the DCI group were significantly lower than those of the ACDF group (P < 0.05). DCI group and ACDF group were followed up for 12-18 months, 14.6 months on average. The VAS-N, VAS-A, NPAD and EQ-5D scores were statistically significant in the two groups before and after operation (P < 0.05), and the clinical outcome was significant. But there was no significant difference between the two groups (P > 0.05). There was no significant difference in the ROM of DCI group before and after operation (P > 0.05); however, the ROM of the ACDF group was increased 12 months after operation (P < 0.05), which was higher than DCI group (P < 0.05). The cobb angle in the ACDF group 3 months after operation had significant difference compared with before operation (P < 0.05), while the cobb angle in the ACDF group 12 months after operation had no significant difference compared with before operation (P > 0.05). Conclusion DCI and ACDF treatment of single segment cervical spondylosis in the short-term follow-up clinical results are satisfactory. DCI can effectively retain the activity of the surgical segment and protect the movement of the spine compared with ACDF.
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