i hate to be last minute, but did you get a second opinion ? case in point, i had a meniscus tear (bucket-handle type) from an MMA competition (noobie w/ an illegal leg submission, no time to tap). i think about a 2 on a scale from 1 to 5 (worst). but bad enough where i could not straighten my leg for months & could not complete an MRI until the 3rd attempt. it was too painful to keep my leg "straight" that long & it would spasm & jerk, bad MRI pics, etc. even so, i never missed a gig but definitely some pain after the gig when things would cool down.
my case was a "maybe" & the doctor (
http://www.resurgens.com/) said i did not 100% need surgery. some other guys said i should do the surgery & get back to full function faster. i decided to let me body heal it. i did NOT opt for surgery & glad i did not after some new research about the arthroscopic & long-term arthritic issues. basically, the procedure i was initially shown cuts / removes the torn piece & apparently this does not grow back, leads to arthritis later in life.
anyhow, i feel 99% recovered w/ no surgery, good diet & exercise.