Pacek Corey A, Tang Jie, Goitz Robert J, Kaufmann Robert A, Li Zong-Ming
Hand (N Y). 2010 Mar;5(1):77-81. doi: 10.1007/s11552-009-9220-9. Epub 2009 Sep 4.
Although carpal tunnel release is one of the most commonly performed procedures in the USA, the morphology of the carpal tunnel as determined previously in the literature has been questioned. Previous methodology has been questioned for accuracy by recent studies. The purpose of this study was to perform a morphological analysis of the carpal tunnel and correlate carpal tunnel and hand dimensions. The carpal tunnels of ten cadaveric specimens were emptied of their contents and a silicone cast of the carpal tunnel was then created. This cast was then digitized, and the dimensions of the carpal tunnel were calculated. These dimensions were compared with the measured hand dimensions of the specimens. The width, depth, tilt angle, length, cross-sectional area, and volume of the carpal tunnel were 19.2 ± 1.7 mm, 8.3 ± 0.9 mm, 14.8 ± 7.8°, 12.7 ± 2.5 mm, 134.9 ± 23.6 mm(2), and 1,737 ± 542 mm(3), respectively. Width, depth, and cross-sectional area did not change significantly along the length of the carpal tunnel, but tilt angle did. The width of the palm strongly correlates with the width of the carpal tunnel. Other dimensional correlations did not reach statistical significance. The carpal tunnel is of uniform dimension along its length. The long axis of the carpal tunnel in cross-section rotates volarly from the radial side of the hand increasingly with distal progression along the carpal tunnel. Based on our analysis of ten cadaveric specimens, the width of the carpal tunnel may be estimated by the width of the palm using the equation: [Formula: see text].
尽管腕管松解术是美国最常施行的手术之一，但先前文献中所确定的腕管形态受到了质疑。近期研究对先前的方法准确性提出了质疑。本研究的目的是对腕管进行形态学分析，并关联腕管与手部尺寸。将十个尸体标本的腕管内容物清空，然后制作腕管的硅胶铸型。接着对该铸型进行数字化处理，并计算腕管的尺寸。将这些尺寸与标本测量的手部尺寸进行比较。腕管的宽度、深度、倾斜角度、长度、横截面积和体积分别为19.2±1.7毫米、8.3±0.9毫米、14.8±7.8°、12.7±2.5毫米、134.9±23.6平方毫米和1737±542立方毫米。宽度、深度和横截面积沿腕管长度没有显著变化，但倾斜角度有变化。手掌宽度与腕管宽度密切相关。其他尺寸相关性未达到统计学意义。腕管沿其长度尺寸均匀。腕管横截面的长轴从手部桡侧开始向掌侧旋转，且随着沿腕管向远端推进而愈发明显。基于我们对十个尸体标本的分析，腕管宽度可通过手掌宽度利用以下公式估算：[公式：见正文]
