I had my c4-5/5-6 fusion done in Jan 2011. Recovery went well and I was back to work in July of that year. Recently however I lost my job and may have to return to heavy construction(concrete specifically). It's extremely physical and I'm very concerned with what future impact that line of work may have on my spine. I hear about adjacent lavels breaking down and wonder if added strain of heavy construction would greatly increase the risk. Thank you in advance for your opinions or advice.