ICD-11 definition : A disease of the knee joint, caused by damaged to the cartilage under the patella.
This disease is characterized by pain in the front of the knee that worsens when walking
up or down stairs. This disease may be associated with injury or overuse.;
A disease of the knee joint, caused by damaged to the cartilage under the patella.
This disease is characterized by pain in the front of the knee that worsens when walking
up or down stairs. This disease may be associated with injury or overuse.