Hyperextension
Over straightening or hyperextending the knee may cause pain in PCL injuries. More so in partial tears.
Posterior drawer test
The posterior drawer test involves applying a backwards force to the Tibia (shin bone) whilst the knee is bent. A positive result is recorded if the Tibia moves back further than on the other leg.
Posterior sag test
The lower leg is raised to a horizontal position, with the knee bent. The therapist looks to see if the Tibia drops down, forming a dent at the front of the upper shin. Always compare to the other knee.
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