How well does your knee rotate?
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As a clinician a very common finding I see is patients who are unable to actively rotate their knee (even when they are not coming to see me for a knee injury).
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The tibiofemoral joint (knee) has 2 degree of freedom:
1️⃣bends and straightens (flexion, extension).
2️⃣shin spinning inside and outside (tibial internal and external rotation on the femur). There is a 2:1 ratio of external rotation to internal rotation, where the most rotation occurs when the knee is flexed to 90 degrees. Often clinicians focus on improving linear movement however introducing rotational movement can also improve global knee function.
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How do you improve your ability to rotate your tibia on your femur?
•Regressed knee controlled articular rotation: Since rotation is greatest at 90 degrees of flexion this is the best place to teach someone the movement. ✅Important tip: Drive your heel into the floor and keep your toes hovering over the ground. This helps to create irradiation for maximal motor activation plus minimizes compensatory ankle movement that often creates the illusion of the tibia spinning.
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