Why bow legs and knock knee lead to arthritis?
Basics Bow legs (genu varum) is condition when legs have deformity outward of natural legs position. Knock knee (genu valgum) is condition when legs have deformity inward of natural legs position. Arthritis means a disorder of the knee joint, generally implying early joint surface damage. Leg axis is conventional axis that shows how the body weight distributes among leg joints. Articular cartilage is a type of dense connective tissue. It can supply smooth surfaces for the movement of articulating bones. First of all bow legs (genu varum) and knock knee (genu valgum) are deformities that are not only cosmetic defects. They also lead to knee-joint move abnormality that after a number of years result to arthritis. We find out that normal body weight distribution is when the leg axis go straight through femoral head, center of the knee-joint and center of articulation of foot. In this case the body weight distribute naturally and articular cartilage of knee-joint have equal weight distribu
