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The Ottawa knee rules are a set of rules used to help physicians determine whether an x-ray of the knee is needed. [1] They state that an X-ray is required only in patients who have an acute knee injury with one or more of the following: Age 55 years or older; Tenderness at head of fibula; Isolated tenderness of patella
The most common knee problems are: soft tissue inflammation, injury, or osteoarthritis. The mechanism of the knee injury can give a clue of the possible structures that can be injured. For example, applying valgus stress on the knee can cause medial collateral ligament rupture, meanwhile a varus force can cause lateral collateral ligament rupture
The Ottawa knee rules count even a limping step as a step. Pittsburgh counts only a complete heel/toe plant as a step. This key difference likely accounts for the difference in specificity. The use of the Pittsburgh knee rules reduces the use of knee radiographs by 52%. [3]
Radiography of the knee using a DR machine Projectional radiograph of the knee. Radiographs (originally called roentgenographs, named after the discoverer of X-rays, Wilhelm Conrad Röntgen) are produced by transmitting X-rays through a patient. The X-rays are projected through the body onto a detector; an image is formed based on which rays ...
Joint space narrowing is defined by this system as a joint space less than 3 mm, or less than half of the space in the other compartment, or less than half of the space of the homologous compartment of the other knee. II: Obliteration of the joint space III: Bone defect/loss < 5 mm IV: Bone defect/loss between 5 and 10 mm V
Radiography is an imaging technique using X-rays, gamma rays, or similar ionizing radiation and non-ionizing radiation to view the internal form of an object.Applications of radiography include medical ("diagnostic" radiography and "therapeutic radiography") and industrial radiography.
Unicompartmental knee arthroplasty (UKA) is a surgical procedure used to relieve arthritis in one of the knee compartments in which the damaged parts of the knee are replaced. UKA surgery may reduce post-operative pain and have a shorter recovery period than a total knee replacement procedure, [ 1 ] [ 2 ] particularly in people over 75 years of ...
Bending the lower leg outwards when the knee is straight, direct blow to the patella when the knee is bent [1] [2] Risk factors: High riding patella, family history, loose ligaments [1] Diagnostic method: Based on symptoms, X-rays [2] Treatment: Reduction, splinting, physical therapy, surgery [1] Medication: Pain medication [3] Prognosis ~30% ...