The Blue Bay Medical Knee Arthrometer provides a reliable, quantitative, radiation-free method for measuring knee laxity.
Interpreting Data – ACL
The measured difference between the right and left knee in most individuals with no knee injuries is less than 3 mm. An ACL deficient knee will most likely result in a right/left knee difference of greater than or equal to 3 mm.
Interpreting Data – PCL
A normal knee will move slightly posterior from 0.5 to 2 mm. A PCL deficient knee will result in an anterior shift of the tibia 2 mm or more.