Dynamic Knee Valgus: How Thiago Santos hurt his knee
••••••••••••••••••••••••
Last night at @ufc 239 @tmarretamma challenged @jonnybones for the belt. The contender started out strong with kicks however during the early part of the fight he threw a kick and afterwards started to hobble. While Santos was able to have a good showing the instability of his knee compromised his ability to win the fight. What did Santos do to his knee?
.
Dynamic Knee Valgus. Typically on a kick you open your hip and step the foot to de stress the knee. In an attempt to target Jones’s calf (really the peroneals) / lower knee Santos did not take a step which caused an over rotation of his body on a fixed knee.
A combination of excessive femur adduction, femur internal rotation and tibial external rotation caused his left knee to buckle. .
One of the main stabilizer of the knee is the anterior cruciate ligament (ACL). The excessive dynamic knee valgus may have caused an ACL injury (strain or tear) which would explain his knee buckling throughout the fight.