Final answer:
To diagnose a distal femur, patellar, and proximal tibia fracture, appropriate imaging studies of the knee and surrounding areas, such as X-rays, are necessary.
Step-by-step explanation:
To diagnose a distal femur, patellar, and proximal tibia fracture, it is necessary to obtain appropriate imaging studies of the knee and surrounding areas. One common imaging technique used to diagnose fractures is an X-ray, which can provide detailed images of the bones and help identify the location and severity of the fracture. X-rays have higher penetrating energy than radio waves, making them ideal for imaging broken bones.