Fact: The spine industry moves so fast that there is no time for clinical studies. Since there is no time for clinicals, there is no feedback loop for solid clinical outcomes. The way to sell more devices is to create new features or approaches.
This is understandable. Suppose a spine company performed a 5-year RCT (randomized control trial) for a specific IB fusion implant. Once the study was finally published maybe 7 years late, that specific implant is no longer commercially available. The market has moved on. Seven years later, surgeons are now interested in newer "shinny objects".
In...