McMurray test
McMurray test is a clinical examination procedure used in the diagnosis of meniscal tears in the knee joint. It was named after the British orthopedic surgeon, Thomas Porter McMurray.
Procedure[edit | edit source]
The patient is asked to lie down with the knee bent. The examiner holds the knee and the foot, providing a valgus (outward) stress at the knee while the foot is externally rotated. The knee is then extended. If a "click" is felt, the test is considered positive.
Interpretation[edit | edit source]
A positive McMurray test indicates a possible tear in the meniscus of the knee. However, it is not definitive proof and further medical imaging such as MRI may be required for confirmation.
Limitations[edit | edit source]
The McMurray test has been found to have a sensitivity of around 52% and a specificity of around 97%. This means that while a positive test is a strong indicator of a meniscal tear, a negative test does not definitively rule out a tear.
See also[edit | edit source]
References[edit | edit source]
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