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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:
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".
- 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
Date: 10 February 2009: Source (2009). "Unique relationship between osteophyte and femoral-tibia component size mismatch in determining polyethylene wear in primary total knee arthroplasty: a case report".
Most ACL tears are a result of a non-contact mechanism such as a sudden change in a direction causing the knee to rotate inward. As the knee rotates inward, additional strain is placed on the ACL, since the femur and tibia, which are the two bones that articulate together forming the knee joint, move in opposite directions, causing the ACL to tear.
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 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.
The lateral collateral ligament (LCL, long external lateral ligament or fibular collateral ligament) is an extrinsic ligament of the knee located on the lateral side of the knee. [ 1 ] [ verification needed ] [ 2 ] Its superior attachment is at the lateral epicondyle of the femur (superoposterior to the popliteal groove); its inferior ...