Commonly asked questions regarding knee replacement surgery? Q.1 Will I be able to sit cross legged after surgery? A.1 Yes you can sit cross legged after surgery with the availability of high flexion joints. Q.2 How long does it take to start walking after surgery? A.2 It takes less than 24 hours to start walking after surgery. Q.3 What is the difference between knee replacement, knee resurfacing and knee capping? A.3 They all are different names for the same procedure. Q.4 What is the most common material from which the joints are made? A.4 They are made of either CoCr (cobalt chromium) or Ti (Titanium) alloys. Q.5 How long will my knee replacement surgery last? A.5 Expected survival of implant of knee replacement surgery varies from 15-25 years.