If other surrounding soft-tissues are damaged, then the amount of laxity will approximately double ... and posterior cruciate ligaments (ACL and PCL) and the lateral collateral ligament (LCL).

higher than grade 1 valgus laxity and/or any degree of varus laxity due to partial or total disruption of one or both collateral ligaments; 5) an obvious knee deformity or a history of fracture(s ...