You rolled it, felt that sickening twist, and now you're standing there wondering if it's a bad sprain or something broken, and whether you actually need to go get it x-rayed. Here's how to work that out. The test emergency departments actually use There's a well-validated clinical tool called the Ottawa Ankle Rules, used in emergency departments specifically to work out who needs an x-ray and who doesn't. An x-ray is generally recommended if there's bone tenderness right at