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Valgus Stress Test Knee

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Other Names

  • N/A

Purpose


Description

  • Patient is supine
  • Leg is relaxed, flexed to about 30° passively so that the knee is "unlocked"
  • Examiner palpates medial joint line, applies valgus force to the patients knee
  • The exam should be repeated 0° or in full extension as well
  • Positive test
    • Laxity or pain with valgus stress
    • Laxity at 30°: Isolated MCL injury
    • Laxity at 0°: suggests multiligament knee injury
  • Grade
    • Grade 1: pain without laxity
    • Grade 2: pain, laxity compared to contralateral limb
    • Grade 3: pain, gross laxity

Pathology


Evidence

  • At 30°:
    • Sensitivity: 86 - 96%[1]

See Also


References

  1. 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 17:52:07
Authors:
Last edited:
12 March 2023 22:30:09
Category: