Table 1
Clinical tests in posterior cruciate ligament (PCL)/posterolateral corner (PLC) instability
PLC
PLC + PCL
PCL
N, Negative; P, positive; SP, strongly positive.
Posterior sag at 90°
N
SP
SP
Posterior drawer at 90°
N
SP
SP
Quadriceps active test
N
SP
SP
Passive external rotation at 30°
P
SP
N
Passive external rotation at 90°
P
SP
SP