I met with my Ortho yesterday to discuss in detail knee replacements and learned some very concerning information. To perform the total knee replacements that are recommended the ACL and MCL will have to be sacrificed. The replacement structure supposedly provides the lost function of these ligaments. How I do not understand. This is exceedingly concerning to me. Has anyone had total knee replacement and have experience with the loss of the ligaments? How has it went? Did you lose stability and motion? Due to previous injuries I also discovered it will take 4 surgeries to do both knees. A fair amount of hardware has to be removed first requiring big incisions and the Doc says the sites would be too close to risk doing at the same time. Which just sucks even thinking about it. I am putting this post out to various site to gather as much info as possible. Thanks for any advise.