Skeletal Trauma > Knee > Patellar Fracture


Patellar Fracture

Patellar Fracture

  • Patellar fractures can be caused by direct truama such as a blow to the anterior aspect of the knee or may be due to indirect forces generated by the tension of the quadriceps tendon.
  • The fracture is best seen on a Sunrise or Merchant's view.
Oblique view

AP view

Sunrise view

Fractures of the patella can be confused with bipartite or multipartite patella. The radiographs below show bipartite patella. Compare the images below with those shown above. Notice that the fractured patella has pieces that fit together like a jigsaw puzzle. The bipartite or multipartite patella has pieces with more rounded margins that do not fit together.


Oblique view


Sunrise view




© Copyright Rector and Visitors of the University of Virginia 2013