I was diagnosed with L5 S1 severely compressed disk last year.  I also have grade I spondylolysis of L4/L5 disk.  I was suffering from chronic soreness in that area.  Especially first thing in the morning out of bed.  My spinal doctor suggested that I give up running and any other activities that produce a pounding effect up and down the spine.  No surgury was required.
After 30+ years of competetive distance running, I made the decision to give up the sport I loved and concentrate on other activities I enjoy for exercise and recreational enjoyment.  I took up yoga 7 months ago and purchased a spinal decompression table.  I began rehabbing  my lower back with a 3 days a week,  15 minutes session on the table, simply stretching out the lower back.  I attended twice a week, 1 hour 15 minute yoga sessions over the 7 months. 

I'm happy to say that my back soreness is gone.  I still do on occassion experience soreness when I stand for too long, or do standing weight bearing exercises, but it usually goes away within a day or two.  I try not to arch my back when bench pressing, and have eliminated or minimized power hang cleans, and standing military presses.  I do most dumbell exercises from a seated position.  I attend cycle spin classes 2-3 times per week, stretch, and keep my core strong with stability ball exercises on a regular basis.

Its all about consistency and dedication rehabbing a back injury.  And sometimes it takes sacrificing exercise(s) that you love.