Radiologic examination, knee; both knees, standing, anteroposterior
CPT4 code
Name of the Procedure:
Radiologic Examination, Knee; Both Knees, Standing, Anteroposterior
Common name: Bilateral Standing Knee X-Ray (AP View)
Summary
A bilateral standing knee X-ray (AP View) is a diagnostic imaging procedure that captures detailed images of both knees from the front while the patient is standing. This helps assess the bone structure, joint space, and alignment of the knees.
Purpose
This procedure is used to diagnose conditions such as arthritis, fractures, and alignment issues in the knees. The goal is to identify any abnormalities in the knee joints that may be causing pain or mobility problems, and to help plan appropriate treatment.
Indications
- Persistent knee pain
- Swelling or inflammation in the knees
- Suspected fractures or ligament injuries
- Pre-surgical or post-surgical evaluation
- Monitoring of known knee conditions like osteoarthritis or rheumatoid arthritis
Preparation
- No specific preparation is generally required.
- Patients may need to remove jewelry or clothing items that could interfere with the imaging.
Procedure Description
- The patient stands upright with both knees fully bearing weight.
- The radiologic technician positions the patient in front of the X-ray machine and ensures proper alignment.
- An X-ray image is taken of both knees from the front (anteroposterior view).
- The technician may take additional images if more views are required for a thorough evaluation.
Duration
The procedure typically takes about 10-15 minutes.
Setting
This procedure is usually performed in a hospital radiology department, outpatient imaging center, or clinic.
Personnel
- Radiologic Technologist (performs the imaging)
- Radiologist (interprets the X-ray images)
Risks and Complications
- Exposure to a low level of radiation, generally considered safe for most patients.
- Rare risk of discomfort from standing in a specific position.
Benefits
- Provides detailed images that assist in accurate diagnosis and treatment planning.
- Helps evaluate the effectiveness of ongoing treatments or postoperative results.
- Results are usually available quickly, aiding rapid diagnosis.
Recovery
- There is no recovery period as it is a non-invasive procedure.
- Patients can resume normal activities immediately after the procedure.
Alternatives
- MRI or CT scans for more detailed imaging if X-rays are inconclusive.
- Ultrasound for soft tissue evaluation.
- Each alternative has its pros and cons relating to cost, resolution, and specificity of imaging details.
Patient Experience
Patients will stand still for a few moments while the images are taken and may experience brief periods of discomfort while maintaining the standing position. There is no pain associated with the X-ray itself, and normal activities can be continued immediately after.