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Varus Stress Test Knee

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Other Names

Varus Stress Test
Performed at 0 degrees of knee flexion (a) and showing the test performed at 30 degrees of flexion with an alternative method for patients with larger legs (b)[1]
  • Varus Stress Test Knee



  • Patient is supine
  • Leg is relaxed, flexed to about 30° passively so that the knee is "unlocked"
  • Examiner palpates lateral joint line, applies varus force to the patients knee
  • The exam should be repeated 0° or in full extension as well
  • Positive test is laxity or pain with valgus stress
    • Laxity at 30°: Isolated LCL injury
    • Laxity at 0°: Multiligament knee injury



LCL Injury

  • At 30°
    • Sensitivity: 25%[2]

See Also


  1. Chahla, Jorge, et al. "Posterolateral corner of the knee: current concepts." Archives of Bone and Joint Surgery 4.2 (2016): 97.
  2. Harilainen A. Evaluation of Knee Instability in Acute Ligamentous Injuries. Ann Chir Gynaecol. 1987; 76: 269-273.
Created by:
John Kiel on 4 September 2019 18:01:09
Last edited:
27 December 2023 18:15:21