经皮椎体后凸成形术定位装置与传统定位装置的对比研究

摘要

Objective:To compare the accuracy and safety between percutaneous kyphoplasty (PKP) positioning device and traditional positioning device which posit entry point of pedicle of vertebral arch by using the C-arm X-ray.Methods: 117 patients with spinal centrum compression fractures were divided into positioning device group (57 cases) and Kirschner wire group (60 cases) depended on the entry point marked by the preoperative C arm X-ray irradiation. To compare the excellence rate, operation time and exposure times between PKP positioning device and traditional device.Results: The positioning times of the PKP positioning device group and Kirschner wire group were (2.3±0.9)min and (6.8±1.3)min, respectively. The exposure times of the two group were 1.6 times and 4.7 times, respectively. And both of the two differences were statistical significant (t=21.062,t=18.521;P<0.05). The puncture success rates of the two group were 100%. And the excellence rates of them were 93% and 87%, respectively, and the difference also was statistical significant (x2=2.761,P>0.05).Conclusion: There are series of advantages in developed PKP positioning device, such as portable, easy and simple control, higher accuracy and safety, less positioning time and exposure times of C arm X-ray.%目的：对比研究所研制的经皮椎体(后凸)成形术(PKP)定位装置与常规用于C臂X射线机照射下定位椎弓根进针点的准确性及安全性。方法：根据术前C臂X射线机定位的数字标记作为穿刺针的进针点，将117例脊柱椎体压缩性骨折患者按照定位方法的不同，将其分为定位装置组(57例)和克氏针组(60例)，比较PKP定位装置与传统的定位方法，并对两组穿刺的优良率、定位时间、在C臂X射线机下的暴露次数进行对比性研究。结果：定位装置组和克氏针组手术定位时间分别为(2.3±0.9)min和(6.8±1.3)min，暴露次数分别为1.6次和4.7次，两组比较差异有统计学意义(t=21.062，t=18.521；P＜0.05)。两组穿刺成功率均为100%，优良率分别为93%和87%，两组比较差异无统计学意义(x2=2.761，P＞0.05)。结论：研制的PKP定位装置操作简便、方便携带，可提高手术的准确性和安全性，减少手术定位时间和C臂X射线的暴露次数。