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Knee effusion is usually diffuse, symmetric and associated with a loss of knee contour, although the joint effusion may be minimal and may be distinguished by pushing the suprapatellar pouch. Any condition in or around the knee can result in an effusion.
26 lut 2024 · The absence of dimples is the first sign of effusion and may be easily noted when comparing the affected knee to the contralateral one. Patellar swelling and suprapatellar bursal distention may be found in more significant effusions.
Joint effusion on ultrasound is anechoic and is most commonly observed in the suprapatellar pouch, but fluid distribution is influenced by the size of effusion and the position of the knee (Fig. 1) . Effusion can be overlooked in the suprahoffatic recess, posterolateral and posteromedial recess, anterior to ACL recess and posterior to PCL.
Knee effusion is common among people with knee osteoarthritis (OA). In those with knee pain and having radiographic OA, nine out of 10 people will have imaging evidence of effusion with 55% having a moderate to large effusion [1] .
12 paź 2023 · Knee effusion, sometimes called water on the knee, occurs when excess fluid accumulates in or around the knee joint. Common causes include arthritis and injury to knee ligaments and cartilage.
15 kwi 2000 · The most common traumatic causes of knee effusion are ligamentous, osseous and meniscal injuries, and overuse syndromes. Atraumatic etiologies include arthritis, infection, crystal deposition...
Larger effusions can be identified visually or by balloting the patella. Comparison to the unaffected side is useful. Joint effusion can result from many joint diseases, including rheumatoid arthritis, osteoarthritis, gout, and trauma. Full 180° extension of the knee is attempted to detect flexion contractures.
