Stock Photo - Arthrosis of the knee gonarthrosis. Arthrosis can affect one or various articulations of the knee. Here it is global arthrosis with an affection of the following articulations : internal femorotibial, external femorotibial and femoropatellar. Furthermore, the menisci are also affected by arthrosis , a meniscosis adds up to the gonarthrosis, forming a meniscarthrosis. The cartilages of the articulations are used, causing a rubbing of the bones. Osteophytes bone excrescences have formed. There is also a remodeling of the bony tissue : at the level of the friction areas, a bone condensation is being made osteocondensation whereas geodes cavities are forming in the adjacent areas.