课件：三角韧带解剖学、影像学及生物力学.ppt

三角韧带的功能The function of deltoid ligament The preset torsion between tibia and calcaneus was primarily set at 30° of internal rotation on specimen in plantar flexion and hind foot inversion. The first series of measurements were performed on healthy specimens andthe following after transecting structures in following order: anterior talofibular ligament (ATFL) in combination with calcaneofibular ligament (CFL), followed by anterior tibiotalar ligament and posterior tibiotalar ligament and finally tibiocalcaneal ligament (TCL). 三角韧带的功能The function of deltoid ligament The combined lateral ATFL and CFL instability showed a decrease in the resisting torque, which ensures stability in ankle sprain trauma. Only a transection of TCL (superficial layer of deltoid ligament complex) with existing lateral dual-ligament instability results in a significant decrease in torque (p 0.0001). Take home messages 三角韧带2层6束，浅4深2 X线韧带束起止点定位重要，临床使用价值大 踝关节最主要的稳定结构为内侧三角韧带 References [1] Schuberth JM, Collman DR, Rush SM, Ford LA. Deltoid ligament integrity in lateral malleolar fractures: a comparative analysis of arthroscopic and radiographic assessments. J Foot Ankle Surg. 2004;43:20-9. [2] Michelson JD, Clarke HJ, Jinnah RH. The effect of loading on tibiotalar alignment in cadaver ankles. Foot Ankle. 1990;10:280-4. [3] Michelson JD, Waldman B. An axially loaded model of the ankle after pronation external rotation injury. Clin Orthop Relat Res. 1996:285-93. [4] Close JR. Some applications of the functional anatomy of the ankle joint. J Bone Joint Surg Am. 1956;38-A:761-81. [5] Boden SD, Labropoulos PA, McCowin P, Lestini WF, Hurwitz SR. Mechanical considerations for the syndesmosis screw. A cadaver study. J Bone Joint Surg Am. 1989;71:1548-55. [6] Rasmussen O. Stability of the ankle joint. Analysis of the function and traumatology of the ankle ligaments. Acta Orthop Scand Suppl. 1985;211:1-75. [7] Ziai P, Benca E, Skr