| Object : To investigate the feasibility of mono-segment pedicle instrumentation(MSPI) in management of thoracolumbar fracture(AO classification A1)by bing compared with short-segment(two-segment) pedicle instrumentation(SSPI).Methods The date of 80 patients with thoracolumbar fracture(AO classification A1) were retrospectively studied,aged from 22 to 60 years(average,38.5 years),who underwent mono-or- two-segment pedicle pedicle screws internal fixation from January 2013 to January 2015.The anterior height of the injured vertebrae and the adjacent two normal vertebrae,and the Cobb angle of the injured vertebrae were measured.The compression rate,the loss of correction,the operation time,and blood loss of the two groups were compared by SPSS17.0 software.Results80 patients of type A1 operative treatment of thoracolumbar fractures were successful,no serious postoperative complications.All cases were followed up after surgery. The surgery time of MSPI is(75.34 + 10.17) min, and its surgical blood loss is(206.23±25.43)ml,In SSPI, surgery time is(115.57 + 13.53) min, surgical blood loss is(230.32±32.34)ml, The operation time and blood loss of SSPI group were more than MSPI group,and it has significant different( P <0.05). At the final follow-up,the compression rate before operation was 44.56%±4.5% and 45.53±8.2%,while the Cobb angle was 24.5°±4.1°and 25.7°±5.6°. the compression rate after operation was9.33%±5.1% and 8.69%±4.3%,while the Cobb angle was 9.3°±1.5°and 8.9°±3.2°. the compression rate after 1 year operation was 11.83%±4.1% and 10.13%±2.6%,while the Cobb angle was 9.3°±1.5°and 8.9°±3.1°. Conclusion For A1 type thoracolumbar fractures, the two surgical options both can effectively alleviate pain, restore injured vertebral height and Cobb Angle well, but SSPI has a shorter operation time and less blood loss,more important is to increase vertebral body activity and reduce the influence on adjacent vertebral bodies,so SSPI has good application value. |
PDF Full Text Request