A knee cap fracture can be diagnosed with the help of physical examination and diagnostic imaging techniques like x-ray and MRI.
On examination, the doctor can feel the edges of the fracture through the skin
, especially if the fracture is displaced. The doctor also checks for a swelling deep inside the joint (hemarthrosis
) that is usually a result of bleeding caused by the fracture. X-rays
showing the front and side views of the affected area are the most commonly available and widely used diagnostic technique.
In some cases, MRI scans
are required to view the extent of fracture.