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pelvis · AP
Hip AP (Unilateral)
Patient supine, affected hip centred to table.
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AI Patient · KV Sir
How to perform this view
- 01
Lay patient supine.
- 02
Locate femoral neck: 2.5-5 cm medial to ASIS at level of greater trochanter.
- 03
Internally rotate leg 15-20 deg if no fracture suspected.
- 04
Centre CR to femoral neck.
- 05
Collimate to include acetabulum and proximal femur.
Anatomical & patient position
Patient: Patient supine, affected hip centred to table.
Part: Leg internally rotated 15-20 deg; femoral neck parallel to IR.
Central ray & centring point
Perpendicular to femoral neck, 2.5-5 cm medial to ASIS at level of greater trochanter.
Exposure factors
kVp
75-80 kVp
mAs
10-15 mAs
SID
100 cm
IR size
24 x 30 cm portrait
Grid
Yes
Respiration
Suspended respiration
Clinical indications
- Hip pain, OA, fractures
- Post-arthroplasty check
- AVN
Contraindications & precautions
- Pregnancy (relative) - confirm LMP / 10-day rule, justify exposure and shield where possible
- Suspected fracture - no leg rotation
Structures shown & evaluation criteria
- Acetabulum, femoral head, neck, trochanters, proximal femur
- Femoral neck in profile without foreshortening