Friday, January 19, 2018


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Knee Pain: Signs and Symptoms

ACL and PCL injuries: these ligaments were mentioned above in the knee sprain section but are much more common than the MCL or LCL to injury.  The ACL (anterior cruciate ligament) and the PCL (posterior cruciate ligament) are two major ligaments in the knee joint that work together to provide the main stability of this joint.  They cross each other and form and X which allows the need to flex and extend without side to side movement.  The ACL injuries are most common during sports that require a sudden change in direction, sudden or abrupt stops and starts and jumping activities.

The ACL is often stretched, or torn by sudden twisting motion while the bullet remains planted in one direction and the knee is turned in the opposite direction.  This can also happen when landing from a jump.  The PCL injuries are likely with impact to the front of the knee, or from hyper extending the knee.  The PCL can also be injured by a direct impact from the outside of the knee joint, such as those that occurred during soccer or football.

Signs and symptoms

  • Excruciating knee pain at time of injury
  • initially a sharp pain on outside and back at knee
  • throbbing aching pain deep in the knee
  • bending or straightening the knee will increased pain
  • pop sound when injury occurs, audible "pop"
  • swelling immediately
  • loss of stability in knee joint
  • loss of strength
  • feeling of unstable or knee giving out
  • limitation with movement