The injury of a healing fracture of the distal femur is located just above the knee joint. This is because the term 'distal femur' refers to the lower section of the thigh bone that connects to the knee. Therefore, option D is the correct choice.
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A fracture of the distal femur is located just above the knee. The term 'distal femur' indicates the lower part of the thigh bone. Hence, the injury is found near the knee joint, marking the appropriate area of concern. ;