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What is water on the knee?

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 the ligaments or meniscus, which is cartilage in the knee.

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Source: Medical News Today

Useful Links

  • American Academy of Orthopaedic Surgeons
  • Sportsmed
  • The American Board of Orthopaedic Surgery
  • American Association of Nurse Anesthetists