Nerve biopsy for no movement in little toes

I am to have a nerve biopsy to see if they can determine why my little toes on both feet won’t move. Every other test so far is negative and this is more or less a last resort type of test. Here are my questions: Has anybody had a nerve biopsy test, and what is your experience with it

I am to have a nerve biopsy to see if they can determine why my little toes on both feet won’t move. Every other test so far is negative and this is more or less a last resort type of test. Here are my questions: Has anybody had a nerve biopsy test, and what is your experience with it

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Nerve biopsy for no movement in little toes