causes of fissuring of the patella
Chondromalacia patella can cause mild or moderate symptoms. These vary from person to person. Common symptoms include: 1  pain in the back of the knee. 2  grinding sensation when you extend your knee. 3  knee tenderness. 4  swelling of the knee.
CMP results from damage to the cartilage which covers the back of the patella or kneecap. This smooth hard cartilage is known as hyaline cartilage or articular cartilage and its purpose is to allow smooth movement of the patella over the femur or thigh bone in the knee. The cause can be either acute from a sudden impact or from a long standing overuse injury.