Department of Orthopedic Surgery, Tokyo Medical University, 6-7-1 Nishi-Shinjuku, Shinjuku-ku, Tokyo, 160-0023, Japan.
Eur Spine J. 2010 May;19(5):782-6. doi: 10.1007/s00586-010-1352-7. Epub 2010 Mar 4.
Lateral whole-spine radiography is a useful tool in the management of spinal deformity, but the most appropriate arm position during radiography has yet to be determined. In this prospective study, we evaluated 26 adult volunteers and 22 patients with lumbar spinal canal stenosis. Lateral whole-spine radiographs were acquired in the most stable and relaxed position while the subjects were standing with their arms extended and their hand gently clasped in front of the trunk (clasped position). The following parameters were measured: sagittal vertical axis (SVA), lumbar lordotic angle (LLA), pelvic angle (PA), pelvic lordosis angle (PRS1), pelvic tilt (PT), and pelvic incidence (PI). The reliability of measurements was assessed by interclass correlation coefficients. The SVA was slightly positive in volunteers. LLA, PA, PRS1, PT, and PI were compatible with standard normal values. The results showed "almost perfect agreement" with regard to intra- and interobserver reliability. The clasped position can be used effectively and reliably for measurement of sagittal spinal alignment for the lumbar region in adults.
侧位全脊柱摄影在脊柱畸形的管理中是一种有用的工具，但在摄影时最适当的手臂位置尚未确定。在这项前瞻性研究中，我们评估了 26 名成年志愿者和 22 名腰椎管狭窄症患者。当受试者站立时，手臂伸展并将手轻轻扣在躯干前面（扣紧位置），以最稳定和放松的姿势获取侧位全脊柱 X 线片。测量以下参数：矢状垂直轴（SVA）、腰椎前凸角（LLA）、骨盆角（PA）、骨盆前凸角（PRS1）、骨盆倾斜角（PT）和骨盆入射角（PI）。通过组内相关系数评估测量的可靠性。志愿者的 SVA 略为阳性。LLA、PA、PRS1、PT 和 PI 与标准正常值相符。结果表明，观察者内和观察者间的可靠性具有“几乎完美的一致性”。扣紧位置可有效地用于测量成人腰椎区矢状脊柱排列。
