经皮椎体成形术/椎体后凸成形术对邻近椎间盘退变的影响

Effect of percutaneous vertebroplasty/kyphoplasty on adjacent intervertebral disc degeneration

  • 摘要: 目的 探讨经皮椎体成形术(percutaneous vertebroplasty,PVP)和经皮椎体后凸成形术(percutaneous kyphoplasty,PKP)在术后早期对邻近椎间盘退变的可能影响及其程度。 方法 选取2010年6月- 2014年2月我院脊柱外科连续收治的胸腰段骨质疏松性单椎体压缩骨折患者共124例,PVP组45例、PKP组39例为观察组,并选取同时期保守治疗40例为对照组。比较术前、术后第1天、术后12个月、术后24个月的视觉模拟评分(visual analogue scale,VAS),患者术前、术后12个月、24个月行MRI检查,测量并记录伤椎上位间盘(UD)及下位间盘(LD)的MRI指数(magnetic resonance imaging index,MRI I)。 结果 术后第1天,VAS评分PVP组(2.97±1.33)、PKP组(3.05±1.45)明显优于对照组(7.67±1.43)(P均< 0.05)。MRI I:术后12个月时PKP组UD(8 503.23±963.87)较对照组(9 904.69±112.63)差(P< 0.05);术后24个月时PKP组LD(7 403.23±963.62)、UD(6 535.15±1 077.69),PVP 组 LD(8 988.55±1 069.59)、UD(7 885.31±978.97) MRI I均较对照组差LD(10 168.00±1 279.18)、UD(9 968.77±1 084.32)(P均< 0.05)。 结论 PVP和PKP术在早期极可能加速伤椎相邻节段椎间盘退变、上位间盘尤为显著,且PKP较PVP影响更显著。

     

    Abstract: Objective To investigate the incidence of disc degeneration adjacent to the vertebral body of osteoporotic fracture treated with percutaneous vertebroplasty (PVP) or percutaneous kyphoplasty (PKP), and whether adjacent disc degeneration was accelerated by the two procedures. Methods From June 2010 to February 2014, a total of 124 patients with osteoporotic vertebral compression fracture (OVCF) were recruited in our study. They were divided into 3 groups, 45 patients were treated with PVP, 39 patients with PKP and 40 patients with conservative treatment (control group). VAS scores and MRI I were recorded respectively before and at 1 day, 12 months, 24 months after operation. Results At the first day after surgery, VAS scores of PVP group and PKP group were higher than that of control group (2.97±1.33) and (3.05±1.45) vs (7.67±1.43), P< 0.05, respectively. At 12 months after surgery, the MRI I of upper disc (UD) of fractural vertebral in PKP group was lower than that of control group (8 503.23±963.87) vs(9 904.69±112.63), P< 0.05. At 24 months after surgery, there were significant differences in MRI I in both the upper and the lower disc of the fractural vertebral between PKP group, PVP group and control group LD (7 403.23±963.62) and (8 988.55±1 069.59) vs (10 168.00±1 279.18) and UD (6 535.15±1 077.69) and (7 885.31±978.97) vs (9 968.77±1 084.32), P< 0.05, respectively. Conclusion PVP and PKP may accelerate the disc degeneration adjacent to the fractured vertebral body in the early stage, especially in the upper disc, and the effect of PKP is more remarkable.

     

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