Femoral Nerve Tension Test
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Purpose
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The prone knee bending test is a neural tension test used to stress the femoral nerve and the mid lumbar (L2-L4) nerver roots. [1][2]
Technique
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The patient is prone symmetrically in the bed, the clinician places one hand on the patient pelvis to prevent movement and feel for any compensations, while the other hand flexs the involved knee as much as possible and maintain the position for 45 seconds. A positive test will be reproducation of the patient symptomes.
Pain following the femoral nerve or the mid lumbar roots (Lower back area, anterior thigh) can direct the clinician to entrapment of the nerve and L2-L4 roots. A tight rectus femoris can also produce pain in the anterior thigh, thus it is important to perform the test on both sides and compare the symptoms.
Evidence[edit | edit source]
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