Greening J, Lynn B, Leary R, Warren L, O'Higgins P, Hall-Craggs M
Department of Physiology, University College London, London, UK.
J Hand Surg Br. 2001 Oct;26(5):401-6; discussion 407-8. doi: 10.1054/jhsb.2001.0582.
Following clinical screening, we examined movement of the median nerve at the wrist using high-resolution (10-22 MHz) ultrasound in 16 controls and 12 patients with non-specific arm pain (also referred to as repetitive strain injury). Imaging was performed just proximal to the carpal tunnel with the wrist in neutral, 30 degrees of extension and 30 degrees of flexion. In control subjects the position of the median nerve was 4.8 (SE=0.4) mm more radial with the wrist flexed than with the wrist extended. In the twelve arm pain patients the average change was only 1.2 (SE=0.5) mm. It appears that ultrasound imaging may be helpful in diagnosing non-specific arm pain, a condition for which there are no well-defined diagnostic tests at present. The reduced nerve movement seen with ultrasound imaging confirms previous work with magnetic resonance imaging.
经过临床筛查后，我们使用高分辨率（10 - 22兆赫）超声检查了16名对照者和12名患有非特异性手臂疼痛（也称为重复性劳损损伤）患者手腕处正中神经的活动情况。成像在腕管近端进行，手腕处于中立位、伸展30度和屈曲30度状态。在对照者中，手腕屈曲时正中神经的位置比伸展时向桡侧偏移4.8（标准误 = 0.4）毫米。在12名手臂疼痛患者中，平均变化仅为1.2（标准误 = 0.5）毫米。看来超声成像可能有助于诊断非特异性手臂疼痛，目前针对这种病症尚无明确的诊断测试。超声成像显示的神经活动减少证实了先前磁共振成像的研究结果。
