Curved vertebroplasty device for thoracolumbar osteoporotic vertebral compression fractures

doi:10.3969/j.issn.2095-4344.2016.17.009

Abstract

Abstract:

BACKGROUND: Currently, the cement delivery device used in vertebral augmentation vertebral augmentation (vertebroplasty and kyphoplasty) has flat tips that cannot be bent. During surgery, we always choose injection cement by symmetric way to keep the balance of power on the biomechanics of the vertebral body, while the traditional cement delivery tube can only be used in ipsilateral vertebral body.

OBJECTIVE: To evaluate the feasibility of curved vertebroplasty device for the treatment of thoracolumbar osteoporotic vertebral compression fractures.

METHODS: Sixty patients (72 vertebral bodies) with osteoporotic vertebral compression fractures were enrolled, including 8 cases of double-level vertebral fractures and 2 cases of three-level vertebral fractures. All operations applied curved delivery device in percutaneous vertebroplasty. We recorded operation time, intraoperative blood loss, and X-ray imaging data through prospective self control study. Treatment effect was evaluated with modified Oswestry disability index, Visual Analogue Scale scores and the World Health Organization Quality of Life assessment. The patients were followed up for 6 months to 2 years.
RESULTS AND CONCLUSION: (1) Surgery was performed successfully on all 60 patients. The average operation time was 27 minutes (20-45 minutes) for 50 cases by unilateral transpedicular approach. (2) The mean amount of bone cement in every single vertebral of all 72 vertebrae was averagely 6.4 mL (4.2-9.5 mL). Bone cement distribution had not been found to be biased one-sided without severe leakage. (3) Visual Analogue Scale score and Oswestry disability index were significantly improved at 1 day after treatment (P < 0.05). During the final follow-up, no significant difference was detected as compared with 1 day postoperatively (P > 0.05). (4) The ratio of good quality of life in 1 month than postoperatively (87%) and in the last follow-up (92%) was significantly greater compared with the preoperative ratio (27%) (P < 0.05). (5) These findings confirmed that curved vertebroplasty device in unilateral pedicle puncture could ensure bilateral symmetric distribution of bone cement. All patients are satisfied with treatment. It is proved to be a feasible simple and safe method.
中国组织工程研究杂志出版内容重点：人工关节；骨植入物；脊柱；骨折；内固定；数字化骨科；组织工程

Key words: Vertebroplasty, Osteoporotic Fractures, Biomechanics, Follow-Up Studies, Tissue Engineering

Xiong Sen, Mao Ke-ya, Han Zhen-chuan, Zhang Ya-bin, Wang Xu-xuan, Li Xiu-can. Curved vertebroplasty device for thoracolumbar osteoporotic vertebral compression fractures[J]. Chinese Journal of Tissue Engineering Research, 2016, 20(17): 2496-2502.

Figures/Tables 3

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