Can we file a lawsuit, the plaintiffs being both my wife and I? Only my wife was injured.

You are correct in noting that the statute of limitations in Texas for a personal injury case is two years.  You need to hire an attorney as soon as possible.  Many attorneys may not even take a case within 6 months of the statute of limitations.  I have taken cases close to the limtiations deadline before.  Most of the time it works out, but sometimes there are unknown problems that have to be worked out. Additionally, slip and fall cases are some of the most challenging cases to handle.  That is because the burden of proof is on the plaintiff to show that the property owner was negligent in creating or allowing a dangerous condition to exist on the property.  Since the evidence necessary to prove your case is in the control of the property owner, I'm sure you can understand how this can pose some difficulty. However, since your wife seems to have a very serious injury, then your case might seem appealing to an attorney.  If you are looking for a personal injury attorney in the Dallas/Fort Worth area, I would be glad to talk to you and answer any questions you might have.