Chinese Journal of Tissue Engineering Research ›› 2020, Vol. 24 ›› Issue (9): 1353-1358.doi: 10.3969/j.issn.2095-4344.2215

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Percutaneous vertebroplasty through unilateral and bilateral pedicle approaches and unilateral pedicle extrapedicle approach for the treatment of thoracolumbar vertebral compression fractures: bone cement perfusion volume and cement leakage rate 

Zhang Zhiwei, Li Li, Huang Ziyu, Wu Duoyi, Gan Farong, Ye Baofei, Zhang Yan, Zhang Taibiao, Hu Wanjun   

  1. Department of Orthopedics, Hainan Provincial Hospital of Traditional Chinese Medicine, Haikou 570203, Hainan Province, China
  • Received:2019-05-27 Revised:2019-05-29 Accepted:2019-06-29 Online:2020-03-28 Published:2020-02-12
  • About author:Zhang Zhiwei, Master, Attending physician of traditional Chinese medicine, Department of Orthopedics, Hainan Provincial Hospital of Traditional Chinese Medicine, Haikou 570203, Hainan Province, China

Abstract:

BACKGROUND: Percutaneous vertebroplasty is clinically performed mainly through unilateral and bilateral pedicle approaches and unilateral pedicle extrapedicle approach. However, there are still disputes on the clinical effect and complications of the three approaches.

OBJECTIVE: To compare the clinical effect of percutaneous vertebroplasty in the treatment of thoracolumbar vertebral compression fractures among three approaches.

METHODS: Seventy-eight patients with thoracolumbar vertebral compression fractures who received treatment in Hainan Provincial Hospital of Traditional Chinese Medicine, China between January 2016 and January 2018 were included in this study. These patients consisted of 30 males and 48 females and were aged 40-71 years. Twenty patients received bone cement perfusion through the unilateral pedicle approach (unilateral pedicle group), 35 patients received bone cement perfusion through the bilateral pedicle approach (bilateral pedicle group), and 23 patients received bone cement perfusion through the unilateral pedicle extrapedicle approach (unilateral pedicle extrapedicle group). Bone cement perfusion volume and cement leakage rate were recorded. All patients were followed up for 1 year. The Visual Analogue Scale score, Oswestry Disability Index, vertebral height reconstruction rate, Cobb angle improvement, patient satisfaction and complications were compared among the three groups. This study was approved by the Hospital Ethics Committee, Hainan Provincial Hospital of Traditional Chinese Medicine, China (approval No. HKL20151203).

RESULTS AND CONCLUSION: (1) Bone cement perfusion volume in the bilateral pedicle group was significantly lower than that in the unilateral pedicle and unilateral pedicle extrapedicle groups (P < 0.05). Bone cement perfusion volume in the unilateral pedicle extrapedicle group was significantly lower than that in the unilateral pedicle group (P < 0.05). (2) There were no significant differences in vertebral height reconstruction rate, Cobb angle improvement and patient satisfaction among the three groups (P > 0.05). At 1 year after surgery, Visual Analogue Scale score and Oswestry Disability Index were significantly lower than those before surgery in each group (P < 0.05). (3) Cement leakage rate in the bilateral pedicle group was significantly lower than that in the unilateral pedicle and unilateral pedicle extrapedicle groups (P < 0.05). Cement leakage rate in the unilateral pedicle extrapedicle group was significantly lower than that in the unilateral pedicle group (P < 0.05). (4) The fracture rate of adjacent vertebral bodies in the bilateral pedicle group was significantly lower than that in the unilateral pedicle group (P < 0.05). (5) These results suggest that three approaches of vertebroplasty and bone cement injection for treatment of thoracolumbar vertebral compression fractures can achieve better clinical efficacy. Bilateral pedicle approach can significantly reduce the incidence of cement leakage and adjacent vertebral fractures compared with the unilateral pedicle approach and unilateral pedicle extrapedicle approach.

Key words: compression fractures, bone cement, percutaneous vertebroplasty, unilateral pedicle approach, bilateral pedicle approach, unilateral pedicle extrapedicle, bone cement leakage, fracture rate of adjacent vertebral bodies

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