Q. A 25-year-old man presents to your clinic with acute left knee pain following a soccer game that occurred half an hour ago. He reports a feeling of 'giving way' and instability in the knee, especially when trying to pivot. Upon examination, the left knee is mildly swollen and there is increased anterior translation of the tibia relative to the femur when the knee is flexed at 30 degrees. The right knee examination is unremarkable. What is the name of this test?