I had my pain diagnosed incorrectly as a bone spur 12 years ago, I should have gotten a second opinion, but I thought this Dr. was really good (I heard he was the Jet's or Ranger's team Dr. back in the 80's)
I had no insurance and could not do anything about fixing the problem. 11 years later I got insurance, I decided I need not live with pain. Best move I made in years.
A different Dr. and a MRI and a torn meniscus was found.
I had meniscus surgery August5,2003. I used crutches on the way home from the surgery center and then a cane for three days. Started physical therapy 2 weeks later and then I was day hiking 12 miles on the AT in CT over the Labor day weekend. Only a month later!
I built up my leg strength and have not had any pain, at work or on the trail.
Of course your case may be different. Get A second opinion