Hip (lateral view)

Andrew Murphy et al.

The lateral hip view is a radiographic projection of the hip that demonstrates and examines the hip joint in the orthogonal plane to the AP projection. This particular projection involves rolling the patient onto the side of interest (therefore not suitable for trauma, for all trauma imaging of the hip see: horizontal beam lateral

  • the patient is rolled at least 45° onto the side of interest with a hip flexion of 90° 
  • the unaffected leg is bent to stabilize the patient position i.e. foot firm on the bed to ensure stability 
  • lateral projection
  • centering point
    • the midpoint between the anterior superior iliac spine (ASIS) and pubic symphysis
  • collimation
    • anterior-posterior to include borders of the femur 
    • superiorly to include acetabulum
    • inferior to include the proximal third of the femur
  • orientation
    • landscape
  • detector size
    • 24 x 30 cm
  • exposure
    • 70-80 kVp
    • 20-30 mAs
  • SID
    • 100 cm
  • grid
    • yes
  • the bony pelvis is imaged from ASIS to the proximal shaft of the femur
  • the obturator foramina are closed due to superimposition of the pubic rami
  • greater and lesser trochanter of the proximal femur is in profile
  • proximal one-third of the femur is visible
  • there will be some foreshortening of the femoral neck due to superimposition
  • the lateral hip projection often referred to as the rolled lateral can be technically challenging on larger patients, ensure you are centered around the mid groin region if bony landmarks are difficult to appreciate
  • this is not an ideal projection to asses for suspected fractures due to both the movement that is required of the patient and the foreshortening of the femoral head 
  • this projection is optimal projection to asses the relationship of the femoral head to the acetabulum (ideal for assessing suspected osteoarthritis) 
Radiographic views

Article information

rID: 72201
Section: Radiography
Synonyms or Alternate Spellings:
  • lateral hip
  • hip rolled lateral

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Cases and figures

  • Figure 2: normal lateral hip
    Drag here to reorder.
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