Jones M M, Amis A A
Division of Anatomy, United Medical School, London.
J Anat. 1988 Feb;156:185-96.
The structure of the digital fibrous flexor sheath was examined by dissection and histology. The presence of a specific system of named fibrous tissue bands, forming annular and cruciate pulleys, was noted confirming details which are well established in the surgical literature although not detailed by the anatomical texts. These pulleys were linked by thin parts of the sheath. When the inner aspect of the sheath was examined, it was found that it was not a continuous smooth surface, as depicted in both anatomical and surgical texts. The thin parts of the sheath often overlapped the free edges of the pulleys before attaching to their superficial aspects, so that the pulleys possessed free edges within the sheath. Forty eight cadaveric fingers were examined in order to determine the frequency of occurrence and sizes of these overlaps. The largest and most frequent overlap was found at the distal end of the A2 pulley (which attaches to the proximal phalanx).
通过解剖和组织学检查了指纤维屈肌支持带的结构。注意到存在一个特定的由命名纤维组织带组成的系统，形成环状和十字形滑车，这证实了外科文献中已明确的细节，尽管解剖学文献未详细描述。这些滑车由支持带的薄部分相连。当检查支持带的内表面时，发现它并非如解剖学和外科文献中所描述的那样是一个连续光滑的表面。支持带的薄部分在附着于滑车的表面之前，常常覆盖滑车的游离边缘，以至于滑车在支持带内具有游离边缘。检查了48个尸体手指，以确定这些重叠的发生率和大小。在A2滑车（附着于近节指骨）的远端发现了最大且最常见的重叠。
