Department for Orthopaedic and Trauma Surgery, University Hospital of Cologne, Cologne, Germany.
Knee Surg Sports Traumatol Arthrosc. 2010 Feb;18(2):225-32. doi: 10.1007/s00167-009-0896-8. Epub 2009 Aug 21.
The purpose of this study was the evaluation of the ankle's anterolateral ligament structures. We documented the anatomic situation of the ankle's anterolateral ligament structures in 33 Thiel-embalmed specimens. The ligaments had been isolated. We performed measurements on both length and orientation and additionally classified the ligaments. We also conducted histologic tissue staining. We were able to document a regular appearance of a so far not well-realized structure between the talus and the tibia, present in 26 (79%) specimens. Average length of this structure was 26 mm (in 20 degrees plantarflexion). The angular orientation in relation to the ant. tibio-fibular lig. was on average 43.7 degrees. This structure could be classified as being either isolated or widespread, with a further four sub-classifications for the orientation. Histologic staining showed parallel orientated dense collagen fibers as well as elastic fibers and hyaline cartilage in different stages of proliferation. In addition, there were neural fibers in the perivascular and the soft tissue. The histologic findings proved that the structure was a ligament. Since the ant. tibio-talar lig. is constantly present in most ankle joints, it could be considered as a regular finding. Its morphology and histology show that this ligament is loaded under tension as well as under compression. This could be one reason for anterior ankle impingement.
本研究旨在评估踝关节前外侧韧带结构。我们对 33 例经 Thiel 防腐处理的标本中的踝关节前外侧韧带结构的解剖情况进行了记录。这些韧带已被分离出来。我们对其长度和方向进行了测量，并对其进行了分类。我们还进行了组织学染色。我们能够记录到一种目前尚未得到充分认识的结构在距骨和胫骨之间的常见出现情况，在 26 个（79%）标本中存在。该结构的平均长度为 26 毫米（在 20 度跖屈位）。与前胫腓韧带的角度方向平均为 43.7 度。该结构可以被分类为孤立或广泛的，在方向上还有另外四个亚类。组织学染色显示平行排列的密集胶原纤维以及弹性纤维和不同增殖阶段的透明软骨。此外，在血管周围和软组织中有神经纤维。组织学发现证明该结构是一条韧带。由于前胫距韧带在大多数踝关节中经常存在，因此可以认为这是一种常见的发现。其形态和组织学显示，该韧带在张力和压缩下都受到负荷。这可能是前踝关节撞击的一个原因。
