Chinese Journal Of Clinical Anatomy ›› 2015, Vol. 33 ›› Issue (3): 344-348.doi: 10.13418/j.issn.1001-165x.2015.03.024

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The application value of CoflexTM interspinous process device in the treatment of degenerative lumbar spinal stenosis

ZHENG  Xiao-qing 1,2,  CHAN Yun-bing2,   LI Meng-yuan2,   HE Yu-xiang2,   ZHENG Qiu-jian2        

  1. 1.Southern Medical University, Guangzhou 510515,China;2.Department of Orthopedics, Guangdong General Hospital & Guangdong Academy of Medical Sciences, Guangzhou 510080, China
  • Received:2014-12-11 Online:2015-05-25 Published:2015-07-24

Abstract:

 Objective   To evaluate the application value of the Coflex interspinous process devicefor  treatment of degenerative lumbar spinal stenosis.   Methods   115 cases of degenerative lumbar spinal stenosis treated with surgery  were retrospectively analyzed ,the followed-up period was more than 5 years. The coflex group have 54 cases, and the fusion group have 61 cases. The perioperative indicators were compared between the two groups. The JOA、VAS、ODl and SF-36 scores were compared between the two groups. The range of the increase of intervertebral motion,  the loss of the intervertebral height and the Pfirrmann grade of the adjacent segments disc were measured at the pre-operative period and the final follow-up.   Results   The observational index had no statistical difference between the two groups (P> 0.05). The range of increase of intervertebral motion of adjacent segments revealed no statistical difference (P> 0.05).The range of loss of intervertebral height of adjacent segments was greater in the fusion group, showing statistical difference (P< 0.01) between the two groups. The adjacent segment disc Pfirrmann grading progressed more obviously in the fusion group, demonstrating statistical difference (P< 0.05) between the two groups.    Conclusion   The coflex implant and lumbar fusion  have equivalent efficacy in the  treatment of degenerative lumbar spinal stenosis, and the coflex implant can delay the adjacent segment pathology in radiology.

Key words: Coflex, Degenerative lumbar spinal stenosis, Non-fusion;adjacentsegment pathology