Risk Factors Associated With Osteoporotic Compression Fractures After Percutaneous Vertebroplasty Re-fracture Analysis

Objective: analysis and comparison of osteoporotic vertebral compression fractures(osteoporosis vertebral compression fracture, OVCF) Percutaneous vertebroplasty(Percutaneous Vertebroplasty, PVP) after treatment with or without associated fracture patient information again to explore mechanisms and risk factors of postoperative fracture again, in order to reduce the incidence and improve the further development of vertebroplasty, thereby enhancing clinical efficacy.Methods: April 2013 to July 2014 Shandong University of Traditional Chinese Medicine Orthopaedic Spine same treatment group were treated osteoporotic vertebral compression fracture patients, a total of 81 cases, 16 cases were male, female 65 cases, aged 50 to 94 years old, average(73.56 ± 8.73) years old, the total number of vertebral 129, of which 58 thoracic, lumbar 71. Analytic Methods A retrospective study based on clinical data and follow-up results according to whether postoperative fracture again divided into group A( non re-fracture group) and group B( re-fracture group), record the patient’s age, sex, number of primary fracture, vertebral fracture site, bone density and other general information, record the amount of injected bone cement surgery, intervertebral leakage has occurred, the rate of vertebral height restoration, kyphosis angle recovery angles, different time periods VAS( visual analogue scale), such as surgery related factors, these factors were statistically analyzed.Results: All patients were successfully completed the surgery, there was no serious complications, such as spinal cord injury and pulmonary embolism. There are 18 cases of 22 vertebrae nonsurgical vertebral fracture again, the ratio is about 22%, at intervals of 1 to 24 months, with an average(8.33 ± 1.25) months. Interbody bone cement penetration 12 cases, 0.09 %, no clinical symptoms occurred after leakage. Age, gender, fracture site, vertebral height restoration rate, kyphosis angle recovery factors between group A and group B was no significant difference(P> 0.05); preoperative and postoperative VAS score in the A 1 week group was statistically significant(P <0.05) in the B Group, final follow VAS score comparison between the two groups was statistically significant(P <0.05), the number of primary vertebral bone cement injection rate in group A between groups B and was statistically significant(P <0.05); BMD between group A and group B was statistically significant(P <0.01).Conclusion: osteoporotic compression fractures underwent PVP treatment can achieve good clinical results, and then fracture occurs within eight months after surgery, low bone density, the number of primary vertebral bone cement injection quantity is then induced fractures risk factors.