Which joint is associated with the iliac tuberosity on its posterior aspect?

Which joint is associated with the iliac tuberosity on its posterior aspect?

• A. Sacroiliac joint
• B. Hip joint
• C. Pubic symphysis
• D. Ischial tuberosity

Answer: (A)

The iliac tuberosity on the posterior ilium is the site where the interosseous sacroiliac ligaments attach, stabilizing the joint between the sacrum and ilium. This makes the sacroiliac joint the structure associated with that tuberosity. The hip joint involves the acetabulum and femoral head, the pubic symphysis is an anterior midline joint, and the ischial tuberosity is a feature of the ischium related to seating and hamstring attachments.

The iliac tuberosity on the posterior ilium is the site where the interosseous sacroiliac ligaments attach, stabilizing the joint between the sacrum and ilium. This makes the sacroiliac joint the structure associated with that tuberosity. The hip joint involves the acetabulum and femoral head, the pubic symphysis is an anterior midline joint, and the ischial tuberosity is a feature of the ischium related to seating and hamstring attachments.