Outcome and efficacy of height gain and sagittal alignment after kyphoplasty of XXXX .

@entity1 @entity1513 @entity3814 @entity174
OBJECTIVE: Although a significant correction of local @entity1513 has been reported previously, only a few studies have investigated whether this correction leads to an improved overall sagittal alignment. The study objective was to determine whether an improvement in the local kyphotic angle improves the overall sagittal alignment. We examined and compared the effects of thoracic and lumbar level kyphoplasty procedures on local versus overall sagittal alignment of the spine. METHODS: Thirty-eight @entity1 with @entity3814 who showed poor response to conventional, palliative medical therapy underwent single-level kyphoplasty. The pertinent clinical data of these @entity1 , from June 2006 to November 2006, were reviewed retrospectively. We measured preoperative and postoperative vertebral body heights, which were classified as anterior, middle, or @entity174 . Furthermore, the local and overall sagittal angles after polymethylmethacrylate deposition were measured. RESULTS: More height was gained at the thoracic level, and the middle vertebral height regained the most. A significant local @entity1513 correction was observed at the fractured level, and the correction at larger spanning segments decreased with the distance from the fractured level. CONCLUSION: The inflatable balloon kyphoplasty procedure was the most effective in regaining the height of the @entity174 in the middle vertebral body. The @entity1513 correction by kyphoplasty was mainly achieved in the fractured vertebral body. Sagittal angular correction decreased with an increase in the distance from the @entity174 . No significant improvement was observed in the overall sagittal alignment after kyphoplasty. Further studies in a larger population are required to clarify this issue.
