Overview
The AP pelvis radiograph evaluates the pelvic ring hips and proximal femora for fractures and degenerative disease. The patient lies supine or stands with legs internally rotated to profile the femoral necks. This view is a cornerstone for trauma and orthopedic assessment.
Technique
Center the detector to the mid pelvis and ensure equal leg rotation to reduce foreshortening. Use appropriate exposure to penetrate the pelvis and include the iliac crests to proximal femora. Immobilize the patient when trauma is suspected.
Clinical Indications
AP pelvis is indicated for trauma hip pain and preoperative planning. It assesses pelvic ring stability and hip joint space. Additional inlet outlet and Judet views may be required for complex pelvic fractures.
Image Assessment
Evaluate pelvic symmetry sacroiliac joints and hip joint spaces. Inspect for cortical disruption and displacement of the pelvic ring. Document fracture patterns and recommend CT for detailed surgical planning.