Cabot’s Popliteal Sign used to test the meniscus of the knee joint.


  1. Patient supine with legs crossed in “figure 4” position (hip abducted, knee flexed at around 110°, heel resting over opposite knee).
  2. Examiner palpates flexed knee joint line with thumb and index finger and places the other hand at the patient’s ankle.
  3. Cabot's Popliteal Sign - knee orthopaedic examination

  4. The patient is then instructed to attempt to isometrically straighten the knee while the examiner applies resistance to that motion.
  5. Cabot's Popliteal Sign - knee orthopaedic examination for


Positive Cabot’s Popliteal Sign

Joint line pain: Meniscal lesion or tear

Clinical Notes

The motion of Cabot’s Popliteal sign increases compressive force at the knee which may aggravate a torn or inflamed meniscus.