Morphomechanics of the humero‐ulnar joint: II. Concave incongruity determines the distribution of load and subchondral mineralization

Abstract

Concave incongruity is shown to determine load transmission and subchondral mineralization of the humero-ulnar joint. It is suggested that this shape leads to a more even distribution of stress, provides intermittent stimulation of the cartilaginous tissue, and has beneficial effects on the metabolism, nutrition, and lubrication of the articular cartilage during cyclic loading.