Sounds like a misalignment of lumbar vertebra.
Any chiropractor will be able to fix that misalignment and stop the tingling sensation in your leg. However, something most people don't think about is that your injury came from a predisposed condition, most likely weak glute muscle (a guess at this point w/o looking at ya).
I'd recommend seeing a Chiropractor specializing in sports medicine.
He/she will not only fix your lower back condition, but also identify your predisposing condition (ie. weak muscle) and prevent such injury from occuring again.
(which could also raise your DL/squat weight)