<prompt> Which of the following is the SAFEST test to be performed in a patient with acutely injured knee joint -Lachmann testPivot shift testMcMurrays testApleys grinding test  <response>: Pivot shift test and anterior drawer test require flexion of the knee joint, which cannot be possible in acutely injured knee.Lachmans test is done in 15-30 of flexion, therefore can be performed in acutely injured knee. 