Re: muscle pain, i think
from what i understand (research, not experience with surgery), sciatica (which sounds like your problem) can be a result of surgery. if it's lasts too long (2 months??? guess), then i would work with a neuro and ortho to see if it's a separate problem.
keep us posted! lots of sciatica sufferers here, so a wealth of info for you if you find out it's not from the surgery. good luck!!!
Sciatica, L3-4 Tear, Spinal Stenosis, DDD L3-S1
Fusion (BMP) L4-5 '11
Anterior Fusion (BMP) L3-S1 '13