Knee basics - 'knee cartilage' problems
Submitted by admin on March 13, 2008 - 3:36pm.
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These are the more common 'knee cartilage' (meniscus) problems:
Meniscal tear
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The meniscus may be torn in an injury, usually a twisting injury. There may be severe pain at the time. Maybe some swelling due to bleeding inside the joint. May progress to a feeling of instability and joint line tenderness.
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Meniscal avulsion
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The ends of the meniscus may be ripped up from their attachment to the underlying tibia bone.
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Meniscal degeneration
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The meniscus wears out, becoming friable at its edges and less effective as a shock absorber.
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Displaced tear with locking
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A specific type of tear of the meniscus, where the fragment flips over and locks the joint. This is the common cause of a knee which cannot fully straighten after and injury.
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Broken off fragment with loose body
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If the torn fragment breaks off it may float in the joint as a 'loose body', and cause catching or locking.
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Meniscal cyst
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A fluid-filled lump which you can feel at the joint line. Arises from the meniscus, often from a pre-existing horizontal cleavage tear (a hidden horizontal tear).
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