Knee - ortho test videos, Lachman's, Ortho Tests, Videos

Lachman’s Test

 

Patient Position

  • Supine or seated
  • Knee flexed to 20-30°

Procedure Steps

  • Grab behind the proximal tibia and pull anteriorly (perpendicular to the tibia).
    • Stabilize the femur with one hand (so it doesn’t track forward).
  • Perform the same steps on the opposite (unaffected) knee.

Positive Sign / Significance

  • Increased anterior translation compared to the other side (or a mushy, soft end-feel) = Anterior cruciate ligament injury

Comments

  • When the knee is flexed to 90°, the hamstring tendons and iliotibial band also prevent anterior translation of the tibia in relation to the femur.  Therefore, this Lachman’s test is preferred over the anterior drawer test.

 

Related Content:

Leave a Comment

Your email address will not be published. Required fields are marked *

*