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[Objective] 1) to develop the inclusion criteria for the study, collected the clinical data, the establishment of the system of retrospective studies; 2) compare AF internal fixation with \three methods of treatment of thoracolumbar fractures. 【Methods】 1) Develop a retrospective study inclusion criteria: 1 single segment thoracolumbar burst fracture without dislocation, pedicle and small joints suddenly full; the fresh fractures weeks l ② injury; ③ vital organs dysfunction; ④ age 18 to 65 years old, no pathologic fractures and severe osteoporosis; (5) were followed up for more than 18 months. 2) analysis of selected cases of basic information, including age, sex, cause of injury, the injured segments, with or without nerve injury, Frankle classification. 3) preoperative preparation: do X-rays, to determine preoperative cone angulation, the upper and lower endplate angle, vertebral height. 4) surgical methods: after the patients anesthesia or continuous epidural anesthesia, prone on the shelves of spinal surgery, conventional revealed fractured vertebral laminectomy, facet and transverse process of the upper and lower. \cortical bone on one side, the other side of the medullary bone), trimmed \the trailing edge of the spinous process, the greatest degree of restoration of vertebral height. Intertransverse bone grafting surgery bitten block of bone fragments in addition to the lamina and spinous process fill in the intertransverse bone graft. Grafting with and without bone graft group \, The next bit bilateral pedicle screws after implantation, the fixing nut four screws Relative to expand into a corner, the maximum level of the compressed vertebra reduction. The intraoperative Note exploratory nerve, posterior longitudinal ligament and intervertebral disc damage. After the operation is complete, rinse, place the drainage strip, suture the wound. 5) after surgery: postoperative shooting X-rays after 7d ~ 14d crutches to walk the crutch generally need about three months, you can walk on their own. 6) follow-up: Perioperative the observed incision length, operative time, blood loss, and hospitalization days indicators; immediate postoperative and preoperative X-ray measurements, 6, 12, and 18 months after surgery vertebral angulation, inferior endplate angle and anterior vertebral height percentage indicators; preoperative and postoperative follow-up last Franke1 classification of spinal cord function evaluation. [Results] 1) 82 patients met the inclusion criteria, of which 36 cases of the \2) perioperative observation: \bone mean blood loss (250 ± 53) mL, the intertransverse bone graft (275 ± 62) mL, no statistically significant difference between the two; without bone graft group mean blood loss (180 ± 27) mL, mean operative time (90 ± 36) min less than the bone graft group, P lt; 0.01. The average length of stay of three groups (7.3 ± 2.7) days, (7.6 ± 3.0) days (6.9 ± 3.4) days, P> 0.05, no significant difference. 3) of Imaging Observation: bone graft group rate of loss of reduction was significantly lower than the control group (P lt; 0.05), the \recovery better than intertransverse bone graft (P lt; 0.05). 4) spinal cord function evaluation the (Franke1 classification): At the last follow-up re-evaluation of spinal function. Frankel grade, \the rest have varying degrees of improvement; without bone graft group in addition to the two cases of Class A and two cases of Class B, improved spinal function. \Another six cases occurred off the nail, not bone graft group 4 cases; intertransverse bone grafting group 2 cases; \6) All bone grafting in patients with good financial bone, no infection occurred. [Conclusion] many, but this study shows \probability of fracture of the vertebral height loss and internal fixation, and simple operation, less bleeding, shorter operative time, loss of reduction and less, is not easy to recurrence of kyphosis and other advantages, therefore it is stable and reliable posterior bone graft .
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