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lower limb · PA Weight-bearing
Knee Weight-Bearing Bilateral (Rosenberg)
Patient standing, facing IR, knees flexed 45 deg.
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AI Patient · KV Sir
How to perform this view
- 01
Stand patient facing vertical Bucky.
- 02
Flex both knees 45 deg, patellae against IR.
- 03
CR 10 deg caudad to midpoint of knees.
- 04
Ensure equal weight on both feet.
Anatomical & patient position
Patient: Patient standing, facing IR, knees flexed 45 deg.
Part: Patella touching IR, weight evenly distributed.
Central ray & centring point
10 deg caudad, midpoint of both knee joints.
Exposure factors
kVp
70-80 kVp
mAs
8-12 mAs
SID
100 cm
IR size
35 x 43 cm landscape
Grid
Yes
Respiration
N/A
Clinical indications
- Osteoarthritis joint space narrowing
- Pre-arthroplasty planning
Contraindications & precautions
- Unable to bear weight / acute fracture
Structures shown & evaluation criteria
- Both knee joints under load