Idols of the Cave.

In this month's Viewpoint editorial, Drs Reiman, Thorborg, and Hölmich provide a timely critique of the escalating diagnosis and surgical management of femoroacetabular impingement. They deconstruct an enthusiasm fueled by the imperfect evidence of passive observation. While almost always well meaning and not invaluable, it is too often enchanted with data skewed by invisible distortions, and interpreted by the human mind blind to its own credulities. J Orthop Sports Phys Ther 2016;46(6):405. doi:10.2519/jospt.2016.0109.