Submit-instability arthritis: the results of cartilage hurt that happens with many dislocations or subluxations from the joint Kneecap replacement surgical procedure does entail anaesthesia and the choice is either typical anaesthesia or spinal anaesthesia (in which you would keep on being awake, but the human body would be numb from the midsection http://knee cap replacement https://www.theorthopaedicandpainpractice.com/knee-cap-replacement-understanding-the-basics-of-this-orthopaedic-surgery/