Chinese Journal of Tissue Engineering Research ›› 2020, Vol. 24 ›› Issue (16): 2500-2505.doi: 10.3969/j.issn.2095-4344.2285

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Efficacy and complications of different viscosities of high-dose bone cement applied in percutaneous vertebroplasty  

Wang Mengran, Fu Zhiyi, Wang Huidong, Wu Yujie   

  1. Department of Orthopedics, Shanghai Ninth People’s Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200011, China
  • Received:2019-11-09 Revised:2019-11-15 Accepted:2019-12-20 Online:2020-06-08 Published:2020-03-24
  • Contact: Wu Yujie, MD, Associate chief physician, Associate professor, Master’s supervisor, Department of Orthopedics, Shanghai Ninth People’s Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200011, China
  • About author:Wang Mengran, Master candidate, Physician, Department of Orthopedics, Shanghai Ninth People’s Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200011, China
  • Supported by:
    the Shanghai Clinical Medical Center, No. 2017ZZ01023

Abstract:

BACKGROUND: Percutaneous vertebroplasty has been extensively applied in the treatment of senile osteoporotic vertebral compression fracture with pain. However, the appropriate dose of bone cement remains controversial.

OBJECTIVE: To compare the efficacy and complications of different viscosities of high-dose bone cement applied in the treatment of osteoporotic vertebral compression fractures by percutaneous vertebroplasty.

METHODS: One hundred and sixty-nine patients with single-segment osteoporotic fractures at thoracolumbar level (T12-L2) admitted at Shanghai Ninth People’s Hospital, Shanghai Jiao Tong University School of Medicine from February 2014 to December 2018 were included. All patients were treated by percutaneous vertebroplasty with high-dose (> 4 mL) bone cement at low viscosity (n=85, control group) and high viscosity (n=84, observation group). The Visual Analogue Scale score, anterior vertebral height, Cobb angle and bone cement leakage were recorded before and 2 days after surgery. The study was approved by the Medical Ethics Committee of Shanghai Ninth People’s Hospital, Shanghai Jiao Tong University School of Medicine, China (approval No. SH9H-2019-T90-1).

RESULTS AND CONCLUSION: (1) The Visual Analogue Scale score at postoperative 2 days in both groups were significantly lower than that at baseline (P < 0.05), and there was no significant difference between the observation and control groups (P > 0.05). (2) The anterior vertebral height at postoperative 2 days in both groups was significantly higher than that at baseline (P < 0.05), and there was no significant difference between two groups (P > 0.05). (3) Compared with the baseline level, the Cobb angle at postoperative 2 days in both groups was significantly decreased (P < 0.05), and there was no significant difference between two groups (P > 0.05). (4) The incidence of bone cement leakage in the observation group (36/84, 42.9%) was significantly lower than that in the control group (57/85, 67.1%) (P < 0.05). The incidence of leakage in paravertebral vessels and spinal canal in the observation group was significantly lower than that in the control group (P < 0.05). (5)  Peri-implant infection, allergic reaction, immune and rejection reactions occurred in neither groups. (6) These results indicate that treatment of senile osteoporotic vertebral compression fractures with high dose of low- and high-viscosity bone cement can result in good clinical outcomes. However, the incidence of leakage is higher in the low-viscosity bone cement, and high-viscosity bone cement can significantly reduce the risk of leakage, especially the leakage of paravertebral blood vessels and spinal canal.

Key words: percutaneous vertebroplasty, high-viscosity bone cement, low-viscosity bone cement, osteoporosis, vertebral compression fracture, spinal implant, bone cement leakage, complication, vertebral height

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