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Question
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Inverted patellar reflex localizes the site of lesion to
Explanation
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Inverted patellar reflex implicates ipsilateral L2-L4 segmentroot dysfunction, leading to an absence of quadriceps response, alongside pathologic hyperreflexia triggering the activation of the opposing hamstring<br>This suggests a thoracic myelopathy with superimposed radiculopathy at L2-L4.
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Reference
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BoyleRS,ShakirRA,WeirAI,et al.Inverted knee jerk a neglected localising sign in spinal cord disease.J Neurol Neurosurg Psychiatry.197942(11)1005-1007
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Option 1
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Is Correct (Option 1):
At D6 and L2-L4
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Option 2
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Is Correct (Option 2):
At L5 and High cervical
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Option 3
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Is Correct (Option 3):
At D12 and L5-S1
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Option 4
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Is Correct (Option 4):
Anywhere above L2
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