Summary
Noises in the knee joint can have various causes. A cracking noise is often less serious than the crunching in the joint. The crunching can indicate a change in the cartilage and thus a limited sliding ability of the joint partners and should be clarified especially if it is associated with pain.
Crunching caused by positioning errors and instabilities can be improved by a targeted strengthening program. Crunching can also be relieved by muscular stabilization of the knee joint.Furthermore, gentle, mobilizing training is useful for nourishing the structures, which ensures blood circulation and supply of the structures without putting excessive strain on the knee joint. Swimming and cycling, for example, are suitable for this purpose.
