Chondromalacia patellae

Pain just below the kneecap when jumping, running, climbing stairs or crouching. We explain why it happens and why releasing the quadriceps isn't enough.

Pain just above the kneecap after exertion or overload. It resolves quickly if treated in time: we explain how.

Sharp pain when twisting or crouching, and sometimes a feeling that the knee locks. We explain the difference between impingement and a tear, and how they're treated.

Partial or complete tear of the anterior or posterior cruciate, with or without surgery. We explain what happens inside the knee and how stability is regained.

Pain on the inner or outer side of the knee after a knock or an awkward movement. We explain why it's almost never operated on and why it's best not to stay still.

Pain on the outer side of the knee when running or going downhill. We explain why the problem is almost never in the band itself, but in the hip.

Pain on the inner side of the knee, slightly below the joint. It usually comes from overload and resolves quickly if treated properly.

A lump behind the knee that hurts when you bend or straighten it. We explain why it appears, why it tends to come back and what we can do about it.