Anterior cervical discectomy and fusion for treating cervical spondylosis of nerve root type: relationship between intervertebral foramen changes and effects

doi:10.3969/j.issn.2095-4344.2016.04.010

Abstract

Abstract:

BACKGROUND: Cervical intervertebral foramen stenosis induced by cervical spondylosis of nerve root type usually requires surgical treatment. The ways mainly include anterior cervical discectomy and fusion and cervical posterior intervertebral foramen decompression. Which is the best way is still inconclusive. With innovation, anterior cervical discectomy and fusion for cervical spondylosis of nerve root type has become the mainstream in the current treatment.
OBJECTIVE: To study the relationship between curative effects and intervertebral foramen-associated parameter changes in patients with cervical spondylosis of nerve root type after anterior cervical discectomy and fusion.
METHODS: From March 2011 to April 2013, 132 patients with cervical spondylosis of nerve root type were treated with anterior cervical discectomy and fusion in the Changzheng Hospital Affiliated to the Second Military Medical University. Neck pain and arm pain visual analogue score, neck disability index score and imaging changes were evaluated before and after treatment.
RESULTS AND CONCLUSION: 132 patients were followed up for 25(4-28) months. Significant differences in neck pain visual analogue scale, anterior intervertebral disc height, posterior intervertebral disc height, intervertebral foramen height, anterior and posterior diameters of the intervertebral foramen, the area of the intervertebral foramen, and the Cobb angle of the fused segment were detected in all patients before and after treatment (P < 0.05). Posterior intervertebral disc height was positively correlated with intervertebral foramen area (r=0.427, P=0.000). The increased Cobb angle of the fused segment was negatively associated with the size of intervertebral foramen (r=-0.273, P=0.003). Intervertebral foramen area was negatively associated with arm pain visual analogue score (r=-0.502, P=0.000). These results indicated that anterior cervical discectomy and fusion with an interbody fusion cage can obviously enlarge intervertebral foramen in patients with cervical spondylosis of nerve root type, and obtain good curative effect. The size of the intervertebral foramen is negatively related to the axial pain. The reconstruction of the intervertebral disc height is necessary to expand the intervertebral foramen. However, the increase of the curvature fusion segments is not helping to expand the intervertebral foramen.
中国组织工程研究杂志出版内容重点：人工关节；骨植入物；脊柱；骨折；内固定；数字化骨科；组织工程

Zhang Bin, Shi Jian-gang, Shi Guo-dong, Liu Yang, Zheng Bing, Kong Qing-jie, Wang Hai-bo, Sun Jing-chuan, Wang Yuan . Anterior cervical discectomy and fusion for treating cervical spondylosis of nerve root type: relationship between intervertebral foramen changes and effects[J]. Chinese Journal of Tissue Engineering Research, 2016, 20(4): 511-516.

Figures/Tables 7

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