No he retired due to fears of too many concussions. Considering he received two in his final season. Back was not the problem it was his head.
"There are a lot of people that believe the concussions led to my retirement, but nothing could be further from the truth," Aikman said. "I then, nor now, have ever experienced anything that had to deal with the concussions. I had surgery back when I was 26. I was young when I had my first back surgery following our first Super Bowl victory and didn't miss any time for it.
"Then, going into my last year, I was having some back issues," Aikman said. "I took epidural shots, as I understand Tony [Romo] had this week, and the first time I took them was before the Jacksonville game that season in 2000, and I remember on the day of the game, waking up, and I'd never felt better for a game in my life. My back felt pain free for the first time in years. And in the first quarter, we completely turned Tony Brackens loose and he slammed me on the turf right flat on my back, and immediately, my back went into spasms. I was done for the day. So that good feeling lasted about half of a quarter. And I took shots the following week hoping that I could recapture the pain-free symptoms, and it never took again. So, that is why I retired."
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