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Quadriceps Active Test

From WikiSM

Other Names

Quadriceps Active Test
Patient positioning for the Quadriceps Active Test[1]
Illustration of the quadriceps active test[2]
Quadriceps active test[3]
  • Muller's Maneuver
  • Quadriceps Active Test
  • Muller's Test
  • Mullers Test
  • Quad Active Test
  • Quad Active Drawer Test

Purpose


Description

  • Patient is supine, both hips and knees flexed with foot on examination table
  • The first part is to observe anterior silhouette of the proximal tibia from the side
  • This should be compared contralateral knee
  • The patient is asked to activate their quadricep but lifting their foot off the table
  • Positive test:
    • Posterior sag of the proximal tibia initially
    • When the quadriceps is activated, anterior translation of the tibia should be seen

Pathology


Evidence

PCL Injury

  • Kiser et al[5]
    • Sensitivity: 54-98%
    • Specificity: 97-100%

See Also


References

  1. Image courtesy of https://drrobertlaprademd.com/, Quadriceps Active Test
  2. Janousek, Andreas T., et al. "Posterior cruciate ligament injuries of the knee joint." Sports Medicine 28 (1999): 429-441.
  3. ARICI, Assist Prof Dr Yeliz KAŞKO, and Assist Prof Dr Tuba GUL. "BASIC, CLINICAL AND SPECIAL ISSUES IN MEDICINE."
  4. Daniel, DALE M., et al. "Use of the quadriceps active test to diagnose posterior cruciate-ligament disruption and measure posterior laxity of the knee." JBJS 70.3 (1988): 386-391.
  5. Kieser, D. C., E. Savage, and P. Sharplin. "A positive quadriceps active test, without the quadriceps being active." Case Reports in Orthopedics 2019.1 (2019): 6135632.
Created by:
John Kiel on 7 August 2019 13:06:32
Authors:
Last edited:
29 June 2026 12:01:53
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