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Comparative analysis of vertebrae strengthened by two ways of bone cement injection with the addition of pedicle screws fixation in the treatment of osteoporosis
CHEN Chao, GOU Xing-Qi, GUAN Hong-Gang, WANG Gang, BI Zhi-Wei
Chinese Journal of Clinical Anatomy ›› 2014, Vol. 32 ›› Issue (4) : 476-479.
PDF(511 KB)
PDF(511 KB)
Comparative analysis of vertebrae strengthened by two ways of bone cement injection with the addition of pedicle screws fixation in the treatment of osteoporosis
Objective To compare the clinical effects of two types of approach in the treatment of osteoporosis. Methods 38 cases of patients with osteoporosis underwent thoracolumbar pedicle screw fixation surgery. The vertebrae of the 21 patients in group I were strengthened by the direct approach of polymethyl methacrylate (PMMA) bone cement with the addition of pedicle screws. The vertebrae of 17 patients in group II were strengthened by the posterior approach of polymethyl methacrylate (PMMA) bone cement with the addition of pedicle screws. the rate of symptom improvement, the rate of bone graft fusion and fusion time, the postoperative plain radiograph, the condition of the pedicle screws, the bright line surrounding the screws, and the complications were compared between the two groups. Results 38 patients were followed up for 9~36 months(averaging 16 months). The rate of bone graft fusion significantly increased and symptoms significantly eased in patients of both groups. No pedicle screw has been found to loosen or prolase in both groups. The bright line was found around the pedicle screws from 3 patients in group I . Bone cement leakage in 3 patients occurred in the second group. Conclusion The vertebral strengthened by PMMA and pedicle screws fixation in patients with osteoporosis has the advantages of enhancing the holding of the pedicle screws, which could effectively prevent the pedicle screws from loosening and prolapsing.
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