Although full recovery from arthroscopic surgery may take a few weeks, I was relieved of the pain caused by my torn meniscus immediately after surgery. I was able to walk the day of surgery and was only inconvenienced a few days as all postop patients need some rest to recover from the trauma of invasive surgery.
Each cryogenic liquid has its own specific properties but most cryogenic liquids can be placed into one of three groups: 1  Inert Gases: Inert gases do not react chemically to any great extent. 2  They do not burn or support combustion. 3  Examples of this group are nitrogen, helium, neon, argon and krypton.
Liquid nitrogen is so cold because of the way molecules change as a gas turns to liquid. Nitrogen doesnât naturally occur in a liquid form here on Earth. Humans have to make it from air. Since air is everywhere, itâs pretty cheap. In fact, some people have said making liquid nitrogen is cheaper than making soda pop.