My 36 year old husband has been an off highway truck driver for 10 years. Recently he has had extreme back pain. it go to the point the he can't be on his feet for more than 15 minutes. His legs give out on him. The doctor check his reflexes in his knees and he pretty much collapsed. A Ct scan showed bilateral L5 pars interarticularis fractures. The doctors keep saying that it was a childhood injury. Problem is he was never an athlete as a child. He works 14 hours per day, 70 hours per week in a truck that had a bad seat. Since its off highway the roads are very rough and he is constantly being bounced around. Do you think it's a possibility that this injury could be cause from his job? From what we've read this injury could also be caused by overuse of your back. Is this correct? Thanks.