X-ray procedure of the straight knee joint

The article is expertly consulted by Master, Doctor Nguyen Hong Hai - Doctor of Radiology - Department of Diagnostic Imaging and Nuclear Medicine - Vinmec Times City International General Hospital.

The junction of the lower end of the femur, the upper end of the tibia, and the back of the kneecap is called the knee joint. In addition, around the knee joint, there is a system of ligaments around the joint, muscle cartilage and tendons...
Doctors often assign patients to take X-rays of the knee joint in cases of injury caused by traffic accidents, accidents. work or accidents in daily life:
Dislocation of kneecap Fracture of cruciate ligament of knee Joint instability In addition, in some cases of following pathology, the doctor will also assign the patient to take x-ray. :
Knee Osteoarthritis Knee Osteoarthritis

2.1 Preparation steps before taking x-ray of straight knee joint The patient receives an x-ray order from the doctor and moves to the designated X-ray location. Give the order form to the doctor in charge of taking X-rays and listen to instructions and explanations from the doctor. Expose the X-ray area as directed and remove jewelry if present near the X-ray unit. 2.2 Procedure for x-ray of straight knee joint The following are the steps to perform an x-ray of a rectilinear knee:
2.2.1 Position of X-ray of a straight knee Instruct the patient to lie supine on the imaging table 2 arms extended, the leg on the right side of the foot should be rotated slightly into the back of the knee joint close to the center of the film vertically.
2.2.2 Position of X-ray of the lateral knee joint Instruct the patient to lie on the side to be imaged on the table, with the knee on the affected side flexed, the thigh slightly flexed, the lateral aspect of the thigh vertically aligned with the film. Adjust the convex shaft and pulley perpendicular to the film. The side leg does not need to be on the table and leans back as much as possible, the right hand needs to cover the headrest, the side hand does not need to grab the edge of the table.

Set the mark right or left. The x-ray ball is projected from above perpendicular to the film. The central ray is localized to the midpoint of the knee joint. Instruct the patient to remain in the position. Film shadow distance 1m, X-ray beam localization. Check the buttons on the control cabinet, look at the patient through the glass, and push the x-ray button. 2.3 Evaluation of results After taking an X-ray, the results of the film must meet the following requirements:
Get the knee joint in the middle of the film. The knee joint is clearly visible. The film has contrast sharpness, the film is clean without scratches. Have the patient's full name, P and T markings, date and year of the scan. Master, Doctor Nguyen Hong Hai graduated with a Master's degree in Diagnostic Imaging from Hanoi Medical University with strengths in diagnosing breast and thyroid cancer. Currently, Dr. Hai is working at the Department of Diagnostic Imaging, Vinmec Times City International Hospital.
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