Removing each knee ligament to test its function

Now that you're familiar with the normal motions, you're ready to knock out some ligaments. On page 1 of the activity worksheet, you'll find a table. There's a row for each of the motions that you practiced in the previous step and a column for each of the major ligaments of the knee. For this experiment, you'll remove each ligament (individually, not more than one at a time) and then go down the column, checking whether the motion corresponding to each row is normal or abnormal.

If you observe abnormal motion with the removal of a ligament, that means that ligament functions to limit that particular motion. For example, if you remove a ligament and the tibia is able to laterally rotate about its long axis 

For this experiment, you'll complete the table on page 1 of your worksheet, removing each remove each ligament and determine whether the resulting motion is normal or abnormal . Any abnormal motions 

Knocking out your knee kit's ligaments

Testing ligament function

Iliotibial (IT) band/tract

Lateral collateral ligament (LCL)

Anterior cruciate ligament (ACL)

Posterior cruciate ligament (PCL)

Medial collateral ligament (MCL)