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radiograph of an ap knee shows that the joint spaces are not equally open and the proximal fibular is completely superimposed over the tibia. which specific positioning error leads to this radiographic outcome?

Answer :

The radiograph result is caused by a positioning mistake that causes lateral rotation of the lower leg specifically. An AP knee's radiograph reveals that the joint spaces are not all uniformly accessible and that the proximal fibula is entirely superimposed over the tibia.

With the proximal fibula foot extended, the image receptor in radiograph is flat against the plantar surface. The proximal fibula foot has to be obliquely positioned 30 to 40 degrees for the anterior-posterior medial radiograph  view. First, second, and third metatarsal bones, whose heads (distal ends) are in touch with the ground, are impacted anteriorly by the weight transferred by the cuneiform bones. The proximal fibula calcaneus, cuboid, fourth, and fifth metatarsal bones support the body weight as it is radiograph transmitted anteriorly from the talus to the side.

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