My Dad is approaching 81. For the last 2 years his knee is severely deformed, looks like rickets, bowing, causing pain & making horrific noises. His GP has resisted sending him for testing & it took more than 2 years to see a specialist. He needs a knee replacement but might not be able to have it because he is showing signs of early dementia & they might not operate because they say they can make the dementia worse. AIBU to be annoyed with his treatment?