An Expedited Diagnostic Algorithm for Lumbosacral Pain: "The Best Likelihood Scenario Approach".

INTRODUCTION: The logic behind diagnostic blocks is very straightforward. What has not been determined is the way diagnostic blocks can be best used. STUDY DESIGN: Philosophical essay. DISCUSSION: The interventional pain management physician would serve as the diagnostic expert by efficiently determining the source of the patient's pain. CONCLUSION: "The Best Likelihood Scenario" might improve diagnostic accuracy while decreasing societal costs.