Isolated Lateral Extra-articular Tenodesis After Prior Anterior Cruciate Ligament Reconstruction

(1)Lateral extra-articular tenodesis (LET) can be added to increased rotational stability in the setting of anterior cruciate ligament (ACL) reconstruction.(2)Although typically added during the index procedure, it can be successfully completed later if needed.(3)The ACL confers both anteroposterior and rotational stability to prevent excessive anterior translation and excessive internal rotation of the tibia with respect to the femur.(4)LET can augment the ACL graft in preventing rotational instability in the setting of an ACL-deficient knee.