On a standard anteroposterior radiograph of the pelvis, the iliopectineal line (also called the linea terminalis) corresponds to which anatomical structure of the acetabulum?
- A Posterior column
- B Anterior column ✓
- C Anterior wall
- D Posterior wall
Correct answer: B. Anterior column
Explanation
The iliopectineal line on AP radiograph represents the anterior column of the acetabulum. The ilioischial line represents the posterior column. These two radiographic landmarks are fundamental to the Judet-Letournel classification. Disruption of the iliopectineal line indicates anterior column involvement, while disruption of the ilioischial line indicates posterior column involvement.
Reference: Rockwood and Green's Fractures in Adults, 9th ed.
High-yield for: NEET PGINI-CETNExTFMGEUSMLEPLABMRCP
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