Ok, if that was the case and the nerve is completely relieved now it would depend on how long the nerve was compressed for starters and if the nerve was not damaged while it was compressed. If it wasn't long damaged and wasn't compressed long as with surgery the nerve heals about an inch a month. That is the best case scenario.
Having muscle weakness could mean the nerve was pinched a long time or there may be damage so it may be hard to say how much you will get back. Sorry this may not have been any help for you. :(
I have some areas from my lumbar problems (pinched nerves) where I have numb areas to motor nerve and more numbness to sensory nerves. I gained a lot back but now it has slowed down some. I also have had cervical surgery and the only part still numb is the tip of my middle finger on my right hand. The other numb areas have come back which included shoulders, neck, arms, hands, and fingers. My 2 major lumbar surgeries were 3 years ago for the anterior with bak cages and may of this year for the posterior lumbar with rods and screws. The 2 surgeries before these were micro-d's. I also had 2 anterior cervical fusion's and 1 posterior cervical fusion with plates, rods, and screws all in the last 2 years.
I am happy to hear you have been able to feel better with the less invasive treatments. I pray you continue to get better. :)
shirl