The conversation between human and AI assistant.
[|Human|] I am going to have TKR in 5 days, I had the other knee done with epidural. He told me they have changed things and will put 1 block in above the knee and do a spinal. I had one bad experience with not being able to feel my legs for almost 4 hours. How often does this happen after a spinal, and does it depend on the medicine you are given? Help nerves are shot!
[|AI|]  Hello dear, I have gone through your question and understand your concerns. Spinal anesthesia is usually a safe procedure with symptoms lasting for few hours and duration depends upon dose of Chat Doctor.  It usually doesn't cause any permanent damage to nerves. As you have gone through one operation be brave all will go well. Wishing you good health. Hope you recover early. Do get back to me for further queries. Regards 
