There’s nothing “sure or quick” about changing medical liability laws that will improve healthcare or its costs. Defensive medicine adds very little to healthcare’s price tag, and rising malpractice premiums have had very little impact on access to care.
From Healthcare Reform - salon.com

Of course it won’t. And it hasn’t. So far, there have been a number of states that have passed this kind of reform. Notice how you never hear about how much money these reforms have saved consumers in Texas? Because it hasn’t. It has made money for Blue Cross. You don’t hear about that either.