Symptoms of posterior cruciate ligament rupture
The rear cruciate ligament (HKB) can tear in the same way as the front cruciate ligament. However, the “cruciate ligament tear in the back” is much less common than the “cruciate ligament tear in the front”. The symptoms also range from primary pain to swelling, effusion and instability in the knee with accompanying restriction of movement and insecurity of gait.
A characteristic feature of a torn posterior cruciate ligament is pain in the hollow of the knee. This results from the fact that the fluid of the effusion flows backwards into the hollow of the knee in the case of a posterior cruciate ligament rupture. There is actually no space for increased fluid accumulation, so that the space requirement leads to pressure pain.
In addition, a bruise is visible in the hollow of the knee in the case of a “torn cruciate ligament in the back”. Furthermore, an abnormal shifting of the knee can occur with a HKB. The so-called rear drawer phenomenon is positive if the lower leg can be shifted backwards against the fixed thigh.
