Effect of percutaneous nucleoplasty with coblation on phospholipase A2 activity in the intervertebral disks of an animal model of intervertebral disk degeneration: a randomized controlled trial

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• 作者：Dajiang Ren ; Zhicheng Zhang ; Tiansheng Sun…
• 关键词：Intervertebral disk degeneration ; Low back pain ; Coblation ; Nucleoplasty ; Animal model ; Phospholipase A2
• 刊名：Journal of Orthopaedic Surgery and Research
• 出版年：2015
• 出版时间：December 2015
• 年：2015
• 卷：10
• 期：1
• 全文大小：794 KB
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• 刊物主题：Orthopedics; Surgical Orthopedics;
• 出版者：BioMed Central
• ISSN：1749-799X

文摘

Background This randomized controlled trial was carried out to (1) evaluate the effect of nucleoplasty with coblation on the PLA2 activity in the degenerative intervertebral disks of an animal model and (2) explore the possible therapeutic mechanism of coblation in addition to the current theory, which focuses on decreasing the intradiskal pressure in the treatment of intervertebral disk degeneration. Methods Thirty-six animal models of intervertebral disk degeneration were successfully established and then randomly divided into two groups: the coblation group (n--8) and coblation control group (n--8). Nucleoplasty using coblation was performed in the coblation group. L4- and L5- intervertebral disk samples were harvested and analyzed for PLA2 activity in different groups at different time points. Results The PLA2 activity in the coblation control group was significantly higher than that in the control group (194.86?±-1.80 and 80.68?±-.56, respectively; P--.01). There was a significant decrease in the PLA2 activity 1?week after coblation than at the real time after coblation (154.39?±-.99 and 184.98?±-.43, respectively; P--.001). The PLA2 activity at 1?month after coblation remained at a lower level than those at 1?week and at the real time after coblation (142.63?±-0.72, 154.39?±-.99, and 184.98?±-.43, respectively), but there was no significant decrease in the PLA2 activity between 1?week and 1?month after coblation. Conclusions Coblation appeared to effectively degrade the PLA2 activity in the degenerative intervertebral disks of this animal model. This represents a potential mechanism for the clinical use of coblation in the treatment of low back pain.