Abstract:

Objective　To analyze the injury mechanism of the distal tibiofibular joint through the anatomic investigation of the complex ligament of distal tibiofibular syndesmosis.　Methods　To dissect the complex ligament of distal tibiofibular syndesmosis layer by layer and simulate the clinical injury of the distal tibiofibular joint by performing the injury model of the distal tibiofibular joint in 8 cadaveric specimens.　Results　The complex ligament of distal tibiofibular syndesmosis included the anterior tibiofibular ligament, the posterior tibiofibular ligament, the transverse tibiofibular ligament and the interosseous tibiofibular ligament. In this simulation test, the anterior tibiofibular ligament would be broken but the posterior tibiofibular ligament and the transverse tibiofibular ligament could be preserved at the position of extroversion and posterorotation.  　Conclusions　The tibiofibular joint may be separated under the damage of the distal tibiofibular syndesmosis, which implicates that the repairing and reconstructing of the broken ligament in time is necessary.

Key words: The complex body of distal tibiofibular syndesmosis, Injury, Anatomy