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13 Cards in this Set
- Front
- Back
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What are the three knee joints of the tibial plateau?
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Tibiofemoral
Patellofemoral Superior tibiofibular |
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Anatomy of the Femur: Femur actually comes down at an angle, while our condyles are on a __
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horizontal plane.
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Describe the shapes of the medial and lateral menisci
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Medial is more C-shaped, elongated from anterior to posterior, whereas the lateral is more round, making about 4/5 of a circle
o Both are attached centrally, sitting atop the tibial articulating surfaces, but only connected around the periphery so they are free to slide |
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What is the problem with taking out the meniscus?
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When you take it out, you increase the pressure on the tibia leading to degenerative arthritis. (Note that knee replacements only last for a limited period of time, especially when you are young and more active)
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Why does the meniscus have a limited ability to heal?
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Because it gets its blood supply from the edges, meaning that if you get an inner tear, cartilage can’t repair itself so you can just take it out.
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What causes IT band pain (when you flex your knee back?
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the portion of the band that moves anterior-posterior across the lateral epicondyle generates friction, inflammation and pain
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Describe Gerdy’s Tubercle
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Takes IT band and attaches to the little tubercle on the tibia (lateral tibia tubercle)
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What happens to the knee joint in full extension?
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becomes taut
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Collateral Ligaments move the knee in what direction?
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side to side
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Why does the medial meniscus get torn when you tear the MCL?
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It is literally attached to the lateral surface of the medial meniscus, which results in meniscal tearing when you tear your MCL
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Why doesn't the lateral meniscus get torn when you tear the LCL?
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you have a space, totally separated from the articulating surface
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ACL becomes more taut if you
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pull the tibia forward of the femur (flex)
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PCL becomes more taut if you
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move the tibia backwards from the femur (extend)
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