To view the knee joints, there are three types of views that are commonly used. For example for the left knee, there are anteroposterior, lateral and left knee skyline view radiographs.
What is a Left Knee Skyline View?
A left knee skyline view is used to evaluate the space between the thigh bone and the kneecap.
- It can help detect any fractures in the bones at the left knee joint. 
- Helps monitor the healing of fractures in the left knee.
- Two bones– patella and the femur are visible in the left knee skyline view
- This view is useful to detect osteoarthritis as well.
The left knee skyline view has been used often to detect patellofemoral crepitus.
How is a Left Knee Skyline View performed?
The left knee skyline view radiograph requires:
- The patient to lie in a semi-recumbent manner on the table.
- A detector is held posterior to the patella of the left knee in a landscape orientation.
- A patient’s feet will be asked to lie very close to the x-ray tube end of the bed.
- The knee should be bent at 30 degrees.
For a taking a left knee skyline view radiograph, a cushion may be put behind the patient to help hold this position for the x-rays.
Side effects/risks of a Left Knee Skyline View
The left knee skyline view is useful in evaluating just two bones, and so the amount of radiation exposure may seem in excess for the benefit it provides.
Preparations before performing a Left Knee Skyline View
To perform a left knee skyline view:
- You must remove all your jewellery and other metal objects.
- You will be asked to change into a loose gown for ease of access to the area.
- Extra precautions may have to be taken if the patient is pregnant.
Post-care of a Left Knee Skyline View
After a left knee skyline view, there are no specific post-care measures one needs to take.
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