Purpose of the Lower Limb Neuro Exam

The lower limb neuro exam is primarily designed to identify any loss of nerve function, which can manifest as either a gain or loss of nerve activity. A gain of function could indicate an irritated nerve root firing excess impulses, presenting as pain or abnormal sensations. Conversely, when examining reflexes and sensations, a loss of nerve function suggests that impulses are not effectively traveling from the nerve root to the brain, potentially indicating serious pathology. The exam also serves to classify the patient’s condition, screen for severe nerve damage, and provide reassurance and education to help alleviate patient anxiety regarding their symptoms.