Grain of salt here: everyone quoted in this article (doctor, agent, West himself) has an incentive to sell the knee as 100% healed - primarily because West is a free agent right now.
I remember reading a lot of similarly upbeat quotes from Chris Webber and his entourage after that knee surgery. When we finally saw him on the court a few months later, he looked like he was dragging a bear trap around the court with his leg.