Indications

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

Procedure

  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

Interpretation

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.