Meniscus Injury
McMurray’s test
Purpose:
McMurray’s test is used to determine the presence of a meniscal tear within the knee.
Technique:
With the patient supine the examiner holds the knee and palpates the joint line with one hand, thumb on one side and fingers on the other, whilst the other hand holds the sole of the foot and acts to support the limb and provide the required movement through range.
From a position of maximal flexion, extend the knee with internal rotation (IR) of the tibia and a VARUS stress, then return to maximal flexion and extend the knee with external rotation (ER) of the tibia and a VALGUS stress.
The IR of the tibia followed by extension, the examiner can test the entire posterior horn to the middle segment of the meniscus.
The anterior portion of the meniscus is not easily tested because the pressure to that part of the meniscus is not as great.
IR of the tibia + Varus stress = lateral meniscus
ER of the tibia + Valgus stress = medial meniscus
Positive findings:
Pain, snapping, audible clicking or locking can indicate a compromised meniscus.