Knee Rotation

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Last updated 11:07 PM on 5/5/26
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7 Terms

1
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What is not available when the knee extends in a closed pack position?

rotation

2
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When the knee is flexed the ligaments are ___ and ___ rotation is available

slack, little

3
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Screw home closed pack

found on the very last stages of extension: the femur rotates medially on tibia

  • action of quadracep muscles

4
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Screw home mechanism is guided by what?

femoral articular surface

5
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In a closed-packed position, muscles don’t have to do what?

contract

6
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screw home in an open kinematic chain

  • external rotation laterally to lock in the tibia

  • internal rotation medially to lock in the tibia

7
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screw home in an closed kinematic chain

  • rotate internally, medially to lock of the femur

  • rotate externally, laterally to unlock of the femur