Jumpers Knee

When you have a jumper’s knee, you experience pain in the patellar tendon that runs across the knee joint. This tendon runs from the shinbone toward the kneecap, and the patella is embedded within this tendon. The tendon can become inflamed, which is called tendinitis, or it can degenerate, which is referred to as tendinosis. This combination leads to a condition known as jumper’s knee.
A jumper’s knee typically develops without a clearly identifiable cause this is called idiopathic.

Symptoms of a jumper’s knee

A jumper’s knee can be recognized by the following symptoms:

  • pain during (explosive) knee extension, for example when jumping
  • pain at the lower part of the kneecap (apex)
  • pain during or after sports
  • pain when climbing stairs
  • swelling/thickening at the lower side of the kneecap