A 23-year-old male soccer player visited his doctor with a complaint of medial knee pain and edema on his left knee that had persisted for more than one month. He noted that his symptoms were intermittent, that the pain would often worsen when he’d twist or rotate his knee, and that he’d sometimes feel a popping sensation. In addition, he experienced knee instability, as sometimes he felt a sensation that his knee would “give out.” He reported no recent falls or injuries.
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