经椎弓根体外复位器在PKP中的临床应用

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Abstract Objective To study the clinical application of transpedicular external reduction device in percutaneous kyphoplasty(PKP)for osteoporotic vertebral body compression fractures(OVCFs) from October 2010 to June 2017.Methods Forty patients with thoracolumbar vertebral osteoporotic compression fractures were divided into observation group and control group.The patients aged 58 to 75 years，with 12 male and 28 female.There were 20 cases in each group，and the patients underwent two different treatment：observation group had Percutaneous kyphoplasty and the control group had kyphoplasty combined with transpedicular external reduction device.Postoperative morphological changes of the injured vertebral body，sagittal Cobb angle，visual analog scale of pain level (visual analogue scale，VAS)，bone cement injection volume，bone cement leakage rate，and postoperative complications were studied.Results We successfully injected bone cement into 40 vertebral bodies.No bone cement toxicity reaction，no symptoms of spinal nerve injury，no cardiovascular and cerebral vascular complications and pulmonary embolism，no death during surgery were found.The postoperative vertebral volume change was significantly increased compared with that before operation (P＜0.05)，and the increase in the observation group was less than control group，the postoperative Cobb angle was significantly decreased (P＜0.05)，and the reduction of observation group was less than that of control group.The VAS scores of the two groups were significantly lower than those before surgery (P＜0.05).The improvement of postoperative and preoperative VAS scores were less in the observation group compared with control group.The amount of bone cement injected into each vertebral body in the control group was more than that of observation group.The cement leakage rate of the control group was lower than that of the observation group(P＜0.05).Conclusion For patients with osteoporotic vertebral compression fractures，percutaneous kyphoplasty combined with transpedicular external reduction has superior biomechanical reduction performance，which can effectively restore and maintain the biomechanical stability of the spine，which can be overcome the defect of PKP in the recovery of vertebral height and improves the curative effect.

Key words： osteoporotic vertebral body compression fractures percutaneous vertebroplasty transpedicular external reduction device biomechanics

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	Articles by authors
	Zhao Lei
	Zeng Yiwen
	Wang Gangrui *
	et al

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Zhao Lei,Zeng Yiwen,Wang Gangrui *, et al. Clinical Application of Transpedicular External Reduction Device in Percutaneous Kyphoplasty[J]. sygkzz, 2019, 25(6): 488-492.

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http://www.sygkzz.com/EN/ OR http://www.sygkzz.com/EN/Y2019/V25/I6/488

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