Bilateral Imaging for Unilateral Pain

I don't think that many refer as understand how little is shown to us when we write a report. We just like them to summarize things neatly and package it up in a nice paragraph with a solid question to answer. Daniel, what are your thoughts on bilateral imaging for unilateral problems? Now, obviously we're a bit stuck with the spine because we only got one of those. But what's the role? What do you think for things like shoulders? Because there's a number of studies that have said, you know, we see these changes in things like shoulders and hips and knees with age.