Patellar Tendonitis (Jumper's/Runner's Knee)
Pain in the knee at the lower part of the front is sometimes brought on by jumping or sudden start/stop motions and changes in direction and can be due to an irritation of the patellar tendon, known as patellar tendonitis or jumper’s knee. Overloading of the quadriceps or patellar tendon can cause it to become inflamed at the lower point...
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