Background: Thoracolumbar metastases is a difficult disease to deal with in spinal surgery. The aim of this study is to investigate the clinical efficacy of bone-filled mesh vertebroplasty combined with posterior spinal internal fixation in the treatment of thoracolumbar metastases.
Methods: The clinical data of 68 patients with thoracolumbar vertebral metastases from January 2018 to April 2020 were retrospectively analyzed. A total of 37 cases underwent bone filling mesh pocket vertebroplasty combined with posterior spinal internal fixation as the observation group, and 31 cases underwent routine vertebroplasty combined with posterior spinal internal fixation as the control group. The visual analogue scale (VAS) scores, Oswestry disability index (ODI) scores, Karnofsky performance status (KPS) scores, and the heights of the anterior margin and middle of the diseased vertebra were compared between the 2 groups before and 1 week, 3 months, 6 months, and 1 year after surgery.
Results: All cases successfully completed the operation, and there was no pulmonary embolism, paraplegia, or perioperative death in follow-up reported. Intraoperative bone cement leakage occurred in 4 cases with a total of 6 vertebrae in the observation group (leakage rate: 14.29%), and in 8 cases with a total of 11 vertebrae in control group (leakage rate: 31.43%). The differences in VAS scores, ODI scores, KPS scores, and the heights of the anterior margin and middle of the diseased vertebra between preoperative and postoperative periods at 1 week, 3 months, 6 months, and 1 year in both groups were statistically significant (P<0.05), while the differences between the 2 groups were not statistically significant (P<0.05).
Conclusions: The application of bone-filled mesh vertebroplasty combined with posterior internal pedicle screws fixation for the treatment of thoracolumbar metastases can not only reduce the injury of the operation, but also achieve the purpose of relieving pain, controlling local tumor growth to a certain extent, restoring neural function, and rebuilding the stability of the spine, which has important clinical value.
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