Degeneration of the articulation of the knee withloss of cartilage, osteophytes, etc. Creates knee pain, deformation of the knee, limitation of the movements of the knee, sometimes pain at the hips(!). Often caused or increased by consequences of accidents, after meniscus exportations, by overweight, postural problems, repetitive microtrauma, more rarely by reumotological or other diseases or by foot problems. Treatments depends on the cause which will be evaluated with orthopedic exams, osteoapthic exams, Applied Kinesiology test, eventually with x-rays, MRIs or ultrasound exams.