Knee Medial Oblique
Position the Patient
- Seated or supine
- Rotate entire leg 45° medially
- Keep knee fully extended
Words That Work
“Straighten your leg and relax it. I’m going to roll your whole leg inward about 45 degrees—like rolling a log—so your toes and kneecap turn together. This opens the joint between the two lower-leg bones and gives us a clearer angled view of the outside of your knee. Keep your leg still.”
Medial oblique knee positioning
Set Up the Shot
- Center here
- Central ray
- ½" below patella apex
- Include this in the field
- Collimation
- Distal femur → proximal tib/fib
- Set the distance
- SID
- 40"
- Check the technique
- Technique
- 60-70 kVp
- Follow facility protocols
Common Pitfalls
- •Incorrect rotation (tib-fib not separated)
- •Joint space not open
- •Entire knee not included
Evaluate the Image
What should be visible?
- Tibial plateau
- Lateral condyles
- Head and neck of fibula and half of patella seen without superimposition
Does the image pass?
- ✓Proper obliquity (tib/fib separation)
- ✓Joint space open
- ✓Entire knee included