Knee joint x-ray is a method of radiation diagnostics used to assess the condition of the knee joint. In traumatology, it is prescribed for suspected condylar fracture of the femur, fracture of the condyles and tuberosity of the tibia, fracture of the head and neck of the fibula, fracture and dislocation of the patella. In other branches of medicine, it is used for developmental anomalies, tumors, degenerative-dystrophic and inflammatory diseases. The standard study is performed in two projections (straight and lateral). No preparation is required. The procedure is not recommended for children and pregnant women.
Indications
Knee joint x-ray is prescribed for suspected fracture of the tuberosity and condyles of the tibia, fractures of the neck and head of the fibula, fracture of the condyles of the femur, dislocation and fracture of the patella. In orthopedics, the technique is used in the diagnosis of arthrosis and developmental abnormalities. In rheumatology, the indications for the procedure are pain and swelling of the knee joint in rheumatoid arthritis and other diseases. In oncology, the study is performed if a malignant or benign tumor of the distal femur, proximal fibula and tibia is suspected.
Methodology of conducting
To take a direct picture, the patient is laid on his back. Legs are straightened. The foot of the sick leg is located perpendicular to the table. For lateral knee joint x-ray, the patient is placed on his side. The diseased leg is located at the bottom and is somewhat bent at the knee joint. In some cases, traumatology prescribes images in additional projections (an axial image of the patella, an additional direct image), allowing a better view of the patella. Both X-rays are taken in the patient’s position on the stomach. For an axial image, the diseased leg is bent as much as possible at the knee joint. The foot is covered with a bandage, the ends of which are held by the patient. An additional direct radiograph is performed by placing the patient on his stomach with his legs straightened.
