Interesting features

• Viewed laterally:

  • The trochlea (distal end humerus) and the trochlear notch of the ulna, bulge anteriorly from the anterior surface of the humerus
  • This facilitates greater range of flexion by delaying the contact of the two bones
• Viewed anteriorly:

  • Trochlea tilted inferiorly on the medial side leading to a lateral deviation of ulna & radius from the humerus (‘carrying angle’)
  • Men =10 - 15 °
  • Women = 20 - 25°