Peduto Anthony J, Numkarunarunrote Numphung, Trudell Debra J, Resnick Donald L
Department of Radiology, Veterans Affairs Healthcare System, San Diego, CA, USA.
J Comput Assist Tomogr. 2009 May-Jun;33(3):444-8. doi: 10.1097/RCT.0b013e318184cd89.
The objectives of this study were to determine whether the fibulotalocalcaneal (FTC) ligament of the ankle, described in anatomical literature, can be identified on magnetic resonance (MR) imaging studies.
Magnetic resonance imaging was performed on 6 cadaver ankles, which were then sectioned axially. The posterolateral ankle was inspected on MR imaging and cadaver sections for ligamentous thickening corresponding to the components of the FTC ligament: main stem and talar and peroneocalcaneal laminae.
The entire FTC ligament or components of it were seen in 5 (83%) of 6 ankles. In 3 (50%) of 6, all 3 components were present. The main stem of the FTC ligament attached to the posteromedial aspect of the lateral malleolus and then divided inferiorly into 2 laminae: The talar lamina extended horizontally to the talus, and the peroneocalcaneal lamina descended vertically to the calcaneus.
The FTC ligament is a sheetlike extrinsic ligament, which is in continuity with the deep posterior crural fascia of the ankle and is visible on MR imaging.
本研究的目的是确定解剖学文献中描述的踝关节腓骨-距-跟（FTC）韧带在磁共振（MR）成像研究中是否能够被识别。
对6具尸体踝关节进行磁共振成像，然后进行轴向切片。在MR成像和尸体切片上检查踝关节后外侧，寻找与FTC韧带各组成部分（主干以及距骨和腓骨-跟骨板层）相对应的韧带增厚情况。
6个踝关节中有5个（83%）可见完整的FTC韧带或其组成部分。6个中有3个（50%）的所有3个组成部分均存在。FTC韧带的主干附着于外踝的后内侧，然后在下方分为2个板层：距骨板层水平延伸至距骨，腓骨-跟骨板层垂直向下至跟骨。
FTC韧带是一种片状的外在韧带，与踝关节后深层小腿筋膜相连，在MR成像上可见。
