关键词: 骨质疏松, 椎体成形术, 椎体后凸成形术, 再骨折, 危险因素

Abstract:

【Abstract】 Objective To investigate the clinical features and risk factors of refracture after vertebroplasty (PVP)/kyphoplasty (PKP) for osteoporotic vertebral compression fractures. Methods From August 2008 to August 2011,.171 with vertebral fracture patients undergoing percutaneous vertebral augmentation (PKP/PVP) were analyzed retrospective. The patients were divided two groups: the refracture groups (19 patients, 27 vertebrae, group A).and the non refracture group (152 patients, group B). The follow-up was got in all cases from 6 to 16 months (average 13 months). The clinical data, injected volume of bone cement, the height of anterior margin of vertebral column and cobb angle were recorded and multifactor logistic regression analysis were performed. VAS score of before and after the first day of reoperation and last time of follow-up were recorded. Results Sixteen vertebral fracture occured in neighbouring vertebral body(84%) after PVP and among them, 9 vertebral body refracture occured 2 months after operation..Exudative bone cement into intervertebral disc had significant difference (P<0.05) between two groups. Vertebral body augmentation in the VSA score of refracture before and after operation had significant difference (P<0.05). Conclusion In the occurrence of vertebral body refracture, osteoporosis is one of main risk factors. Vetebral body augmentation would get a satisfactory therapeutic result. At the same time, it is very important to intensify the treatment of anti-osteoporotic drugs.

Key words: Osteoporosis, Vertebral Kyphoplasty, Vertebroplasty, Refracture, Risk factors