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Lateral view. It shows the following measurements used for post-operative evaluation : Anterior femoral notching (the femoral component causing reduced thickness of the distal femur anteriorly), which seems to cause an increased risk of fractures when exceeding about 3 mm. Reference:
- Reusing images - Conflicts of interest: None Mikael Häggström, M.D. Consent note: Written informed consent was obtained from the individual, including online publication. Other versions: Postoperative X-ray of normal knee prosthesis: Anteroposterior view
English: Postoperative X-ray of normal knee prosthesis of a 73 year old man who had osteoarthritis.It shows KS zones (Knee Society, 2015).Reference: (2015). "Development of a Modern Knee Society Radiographic Evaluation System and Methodology for Total Knee Arthroplasty".
A difference of greater than 10-15° indicates a positive test and likely injuries to the posterolateral knee. Next, repeat the test with the patient's knees flexed at 90°. Increased rotation at 90° indicates a combined PCL and posterolateral knee injury. If the rotation decreases compared to 30°, then an isolated PLC injury has occurred.
Likewise, external rotation of the leg can be applied to test the posterior portion of the medial meniscus. [ 2 ] The McMurray test is named after Thomas Porter McMurray , [ 2 ] a British orthopedic surgeon from the late nineteenth and early twentieth century who was the first to describe this test.
To indicate knee replacement in case of osteoarthritis, its radiographic classification and severity of symptoms both should be substantial. Such radiography should consist of weightbearing X-rays of both knees: AP, lateral, and 30 degrees of flexion. AP and lateral views may not show joint space narrowing, but the 30-degree flexion view is ...
Projectional radiography, also known as conventional radiography, [1] is a form of radiography and medical imaging that produces two-dimensional images by X-ray radiation. The image acquisition is generally performed by radiographers, and the images are often examined by radiologists. Both the procedure and any resultant images are often simply ...
A tangent to the lateral facet of the patella. With the knee in 20° flexed, this angle should normally open laterally. [16] The patellofemoral index is the ratio between the thickness of the medial joint space and the lateral joint space (L). With the knee 20° flexed, it should measure 1.6 or less. [16]