“…Järvinen [6], Buchbinder [1], and others. They have serially shown in shoulder pain [6], lateral epicondylitis [5], and other conditions the utility of nonsurgical modalities including physical therapy to be equivalent to surgical treatment without the risks associated with discretionary surgery [7]. But as I have argued in the case for lateral epicondylitis [3], it is important to identify the root cause of these conditions, and the root cause of shoulder impingement remains mostly a mystery.…”