Journal
JOURNAL OF SPINAL DISORDERS & TECHNIQUES
Volume 16, Issue 1, Pages 10-19Publisher
LIPPINCOTT WILLIAMS & WILKINS
DOI: 10.1097/00024720-200302000-00003
Keywords
osteoporosis; vertebral burst fractures; neurologic compromise; outcomes
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A retrospective study was performed on the operative results following osteoporotic burst fractures with neurologic compromise. We sought to investigate the results of operative decompression and stabilization in patients with neurologic deficit as a result of an osteoporotic burst fractures. We examined the postoperative radiographic outcomes, level of disability, functional outcomes, and complications. Compression fractures of the anterior vertebral column secondary to osteoporosis and minimal trauma are a common clinical entity. These fractures are often effectively treated by nonoperative means. However, compressive failure of the middle vertebral column can lead to retropulsion of vertebral body fragments with significant canal compromise and neurologic injury. Treatment of these more severe injuries becomes more difficult and is less well established. Functional outcomes and disability from pain have not been examined. Previous reports on this subject have documented generally good results but have given few specific data regarding outcomes. We retrospectively report on a series of 10 patients, from 1995 to 1998, with osteoporotic burst fractures, which led to varying degrees of neurologic compromise. There were nine female and one male patient with a mean age of 76 years. Nine of the 10 patients presented more than I month following the onset of neurologic symptoms; 70% of the fractures occurred at the thoracolumbar junction (T11-L2). Mean loss of anterior column height was 59%, with significant kyphosis (mean 28degrees) in nine of the 10 fractures. Mean canal compromise was 41%. At presentation, seven patients were Frankel grade D and three were Frankel grade C. All patients were treated operatively with decompression and arthrodesis. Mean time to follow-up was 16 months. Six of the 10 patients had improvement of their Frankel grade postoperatively and one deteriorated neurologically. Seven of the eight surviving patients completed the Oswestry questionnaire with a mean score of 44%, representing severe disability secondary to low back pain. The Physical Component score of the SF-36 was at or below the national mean for each patient. Complications were present in six of the eight surviving patients. Osteoporotic fractures are not benign. Careful evaluation for neurologic deterioration is warranted. Neurologic recovery occurred in six of the 10 patients; however, significant disability secondary to pain was common.
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