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Schaeffer's Sign on Physical Exam - Babinski Equivalent Schaeffer's sign is a clinical sign in which squeezing the Achilles tendon elicits an extensor plantar reflex. It is seen in patients with upper motor neuron lesion of the lower limbs. #Schaeffers #Reflex #Sign #PhysicalExam #clinical #neurology #Pyramidal #video #Achilles