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Valgus strain


The subject lies in the supine position with the knees extended. The examiner
stands level with the subject’s knee. One hand grasps the lower leg from the medial side just proximal to the malleolus. The other hand is supinated and placed at the lateral femoral condyle.


Lift the extended leg and apply strong valgus pressure with the distal hand. Counterpressure is maintained at the lateral femoral condyle .

Common mistakes.


Normal functional anatomy:

• Range: no movement is possible in a normal knee
• End-jeel: ligamentous
• Limiting structures:

– medial ligamentous complex
– cruciate ligaments
– posterior oblique ligament.

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