Lachman Test

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Lachman Test

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Used to assess the integrity of the Anterior Cruciate Ligament (ACL)

Similar to the anterior drawer test but more sensitive​removes the hamstrings as a factor​

  1. Patient is supine, knee flexed to 30 degrees – the flexion at 30 degrees is what removes the hamstrings as a factor in the test
  2. Physician places one hand around the femur and one hand around the tibia and creates anterior or posterior pull to assess the ACL/PCL (tibia pulled anterior while femur pushed posterior)

Test is considered to be positive with increased movement and/or pain 

Always compare both sides by testing the non-injured knee first.

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