SCAPHOID FRACTURE Relevant antomy

The distal row, which is more stable and moves as a unit, consists of the trapezium, the trapezoid, the capitate, and the hamate. The distal row forms a rigid, supportive transverse arch upon which the five metacarpals of the hand are supported. The trapezium articulates with the first metacarpal, the trapezoid with the second, and the capitate with the third one. The capitate and trapezoid are tightly connected to the metacarpals, whereas there is 30 to 40 degrees of flexion-extension and rotation at the metacarpotrapezial joint. The hamate articulates with the fourth and fifth metacarpal. The radioscaphoid ligament that inserts into the tuberosity of the scaphoid is the radial expansion of the radioscaphocapitate ligament.