What would be causing bone bruise to continue to cause mild pain swelling numbness in other parts of the leg a year after injury?

You need an X-ray: to be sure there's not something going on in the bone other than a bruise. This could be serious. Good luck

See your doctor: This is a problem that requires a face-to-face meeting with your doctor. In that meeting, your doctor will listen to you, perform a throrough examination and possibly order labs or other tests. Based on this information, he/she will be able to tell you what's wrong and what to do about it.