Department of Orthopedic Surgery, China Medical University, Taichung, Taiwan.
AJNR Am J Neuroradiol. 2011 Jan;32(1):121-4. doi: 10.3174/ajnr.A2233. Epub 2010 Oct 7.
Many authors have reported the increase in vertebral body height after vertebroplasty; if the fractured vertebrae are mobile, we should be able to demonstrate their mobility in radiographs. The purpose of this study was to discover the diagnostic value of dynamic radiographs and the percentage of mobile vertebrae in painful VCFs.
From September 2005 to September 2008, 105 patients underwent surgery to treat 144 painful osteoporotic VCFs. The indications for surgery were severe pain and MR imaging-confirmed active edematous lesions. Preoperative sitting lateral radiographs of the fractured vertebrae were compared with supine cross-table (with a bolster beneath) lateral radiographs to determine the presence or absence of dynamic mobility. Kyphotic angle and anterior vertebral body height were measured.
The patients' ages ranged from 62 to 90 years. There were 19 men and 86 women. The total number of mobile VCFs was 126 (87.5%). One hundred four (99%) patients had at least 1 mobile VCF. The average anterior vertebral height in sitting lateral radiographs was 13.53 ± 6.80 mm and increased to 22.01 ± 6.13 mm in supine cross-table with bolster lateral radiographs. The average vertebral body height increase was 8.48 ± 5.36 mm.
Dynamic (sitting and supine with bolster) radiographs can be valuable in diagnosing painful vertebrae in VCFs. The sensitivity was 0.88 in this study.
许多作者已经报告了椎体成形术后椎体高度的增加；如果骨折的椎体是活动的，我们应该能够在影像学上显示它们的活动性。本研究的目的是发现动态影像学检查和疼痛性 VCF 中活动椎体的百分比的诊断价值。
2005 年 9 月至 2008 年 9 月，105 例患者接受手术治疗 144 例疼痛性骨质疏松性 VCF。手术适应证为严重疼痛和 MR 成像证实的活动性水肿病变。比较术前骨折椎体的坐位侧位片和仰卧位交叉桌位（垫在下面）侧位片，以确定是否存在动态活动度。测量后凸角和椎体前缘高度。
患者年龄 62 至 90 岁，男 19 例，女 86 例。活动性 VCF 总数为 126 例（87.5%）。104 例（99%）患者至少有 1 个活动性 VCF。坐位侧位片的平均椎体前缘高度为 13.53 ± 6.80mm，仰卧位交叉桌位（垫在下面）侧位片的平均椎体前缘高度增加到 22.01 ± 6.13mm。平均椎体高度增加 8.48 ± 5.36mm。
动态（坐位和仰卧位，垫在下面）影像学检查对诊断 VCF 中的疼痛性椎体有价值。本研究的敏感性为 0.88。
