PCL Sag Test

Aka: PCL Sag Test

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II. Indications

  1. Assessment for Posterior Cruciate Ligament Rupture

III. See Also

  1. Knee Exam
  2. Knee Posterior Drawer Test
  3. PCL Sulcus Test

IV. Technique

  1. Patient Position
    1. Patient supine as if sitting in a horizontal chair
      1. Thighs at 90 degrees
      2. Knees at 90 degrees
  2. Examiner
    1. Supports legs by holding ankles
    2. Observe sag as tibial plateau sinks below Patella
  3. Images
    1. orthoKneeSagTest.jpg

V. Interpretation: Positive Test Suggests PCL Rupture

  1. Increased sag is associated with PCL Tear

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