Test for the anterolateral instability of the knee :

• There is a two test for this instability :

1. Active pivot shift test
2. Crossover test of the Arnold

• This test is used by the therapist for the check of the instability .
• This test is used to when the patient is complain the pain around to the knee .
• This test is applied during the examination part .

Active pivot shift test :

Purpose of this test :

• This test is used to the check of the anterolateral rotary instability of the shoulder .
• This test is examine the abnormal anterior rotation of the tibia on the lateral side which is relative to the femur .

What is technique of the test performance ?

• Starting position for the test is sitting .
• In the sitting position keep the foot on the floor in natural rotation & do the knee flexion up tp 80′ to 90′.
• Then asked to the patient for the do the isometrically contract of to the quadriceps .
• On that time examiner is stabilize to the foot .

Result of this test :

• The positive test is indicated by to the anterolateral subluxation of the lateral tibial plateaus .
• So that it is indicative of the anterolateral instability .

Crossover test of the Arnold :

Purpose of this test :

• This crossover test is used to for the check of the anterolateral rotary instability of to the shoulder .
• This test is examine to the abnormal anterior rotation of to the tibia on to the lateral side which is relative of to the femur .

What is technique of the test performance ?

• Starting position for the test is standing .

• Then asked to the patient for the do cross the uninvolved leg in front of the involved leg .
• The examiner then put the carefully steps on the patient ‘s involved foot to stabilize it .
• Then instructs to the patient for the rotate the upper torso away form the injured leg approxemately 90 ‘ form the fixed foot .
• Then the patient is achieved this position then asked to the patient for the contracted of the quadricep muscle .

Result of this test :

• The positive test is indicated by to the anterolateral subluxation of the lateral tibial plateaus .
• So that it is indicative of the anterolateral instability .