Radiograph with a<unk><unk><unk><unk>  (gray arrow) and an effusion (pink arrow) Measurement technique to determine the depth of the<unk><unk>  on<unk>  x-rays In radiology, the<unk>  is a finding on a<unk>  radiograph that is considered an indirect sign of a torn anterior cruciate ligament (ACL). It is an abnormal<unk> ening of the<unk>  condylopatellar sulcus from an osteochondral impaction fracture. A depth greater than 1.5 mm is a reliable sign of a torn ACL.
Deep lateral femoral notch sign
Round ligament pain
Shoulder pad sign
Heel tap sign
Psoas sign
Hot quadrate sign
Non-lifting sign
Facet joint injection