Which bony landmark lies at the same level as the superior border of the pubic symphysis?

Which bony landmark lies at the same level as the superior border of the pubic symphysis?

• A. Iliac crest
• B. Prominence of the greater trochanter
• C. ASIS
• D. Ischial tuberosity

Answer: (B)

In radiographic positioning, knowing which pelvic landmarks sit at the same horizontal level helps you place and align the patient properly. The superior border of the pubic symphysis lines up with the prominence of the greater trochanter, making the greater trochanter a reliable horizontal reference for imaging the lumbar region. The iliac crest sits higher on the pelvis, the ASIS is not at that exact level, and the ischial tuberosity is lower, so they don’t match this particular plane. Using the greater trochanter’s prominence helps ensure the field includes the desired spine area without misplacing the beam.

In radiographic positioning, knowing which pelvic landmarks sit at the same horizontal level helps you place and align the patient properly. The superior border of the pubic symphysis lines up with the prominence of the greater trochanter, making the greater trochanter a reliable horizontal reference for imaging the lumbar region. The iliac crest sits higher on the pelvis, the ASIS is not at that exact level, and the ischial tuberosity is lower, so they don’t match this particular plane. Using the greater trochanter’s prominence helps ensure the field includes the desired spine area without misplacing the beam.