RE: Evidence will dictate standard of care.
I agree with you. You should not practice "CYA" medicine. It is time consuming and exhausts needed resources. Additionally, it can be a double edged sword setting a precedence for your practice pattern, i.e. if all of a sudden if you didn't order that MRI for the soft tissue lesion that you knew was a plantar fibroma and you typically order this study, you could appear to a jury that you deviated from your own standard of care. This, of course, is only a problem if the lesion is later to be found malignant. Practice decisions should be supported with evidence based medicine which statistically analyzes the best protocol for diagnosis of diseases and what treatment generates best outcomes. Medical literature and the locality of practice will dictate standard of care. In medicine, complications are not desirable but are a fact of practicing medicine and surgery. If you have data to support your case, it is unlikely you will be faulted for anything tangible. "In God we trust, others must present data"