Knee Pain - USMLE - Dangerous Important Sings & Conditions !

Many young people around me suffer from knee pain or they have suffered once in their lives. My brother, my two closest friends, 3 colleagues all complain of knee pain and swelling... Runner's knee, Jumper's knee, what's the difference? Well, knee pain is quite common but the conditions that can cause are many!
Conditions such as patellofemoral pain syndrom, Osgood-Schlatter's disease, patellar tip syndrome, different forms of tendonitis and the list goes on and on... Why is that? Why are there so many knee conditions? Well...
The knee has quite a complicated anatomy. It must preserve a wide range of motion to allow humans to run and yet it must bear all the weight from a let's say 300 pound heavy person upon landing on his/hers feet from a jump!
There are different ligaments such as the anterior cruciate ligament and the posterior cruciate ligament as well as the collateral, medial and lateral ligaments! Those are quite thick and powerful ligaments and they allow the knee to control the force that is exerted on it and still preserve the ability to flex, extend and rotate the knee joint!.
symptomsky.com...
symptomsky.com...
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[@user-yc6wm6gh4i]

Nice video

[@symptomsky]

太感谢了