floating patella test

The floating raft test is used to determine whether there is joint effusion in the knee joint injury and to diagnose the degree of knee joint damage. The floating raft test determines whether there is joint effusion in the knee joint injury. There is about 5 ml of liquid in the normal knee. When the joint effusion reaches or exceeds 50 ml, the floating sputum test is positive, indicating that there is a moderate amount of fluid in the joint. If the amount of fluid is too large, the sacral bone sinks and the floating raft test is also positive. Basic Information Specialist classification: growth and development check classification: physical examination Applicable gender: whether men and women apply fasting: not fasting Analysis results: Below normal: Normal value: Negative: 0-5ml Positive: 5-50 or more ml Above normal: negative: The result of the test was negative. There was no effusion and no sacral subsidence occurred. Positive: There is about 5 ml of liquid in the normal knee. When the joint effusion reaches or exceeds 50 ml, the floating sputum test is positive, indicating that there is a moderate amount of fluid in the joint. Warm reminder: Position and preparation should be sufficient, let go quickly and observe carefully. Normal value The result of the test was negative. There was no effusion and no sacral subsidence occurred. Clinical significance Abnormal results: The floating raft test determines whether there is joint effusion in the knee joint injury. There is about 5 ml of liquid in the normal knee. When the joint effusion reaches or exceeds 50 ml, the floating sputum test is positive, indicating that there is a moderate amount of fluid in the joint. If the amount of fluid is too large, the sacral bone sinks and the floating raft test is also negative. People who need to be examined: people with abnormal pain in their knees. Positive results may be diseases: patella softening, knee osteoarthritis precautions Taboo before inspection: no special contraindications. Requirements for inspection: Position and preparation should be sufficient, let go quickly and observe carefully. Inspection process The leg and knee joints are straightened and the quadriceps are relaxed. The examiner squeezes the upper sac in one hand, so that the joint fluid accumulates behind the humerus, and the other index finger gently presses the tibia. If there is a floating feeling, the tibia can be felt to collide with the femur. Impact sound; loose pressure, then the tibia is raised again, it is positive. Not suitable for the crowd There are no special taboos. Adverse reactions and risks Generally no complications occur.

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