Oh dear. I can only share my experience. Dr Gustavo first did laparocopic surgery on my knee to repair my meniscus. This was unsuccessful. Before he replaced my knee, I asked him to tell me about my new knee. He obviously was insulted that I asked. My primary doctor told me to trust Dr Gustavo to pick out the appropriate prosthesis.
After the replacement, I had a horrible time with physical therapy. My new knee had a very limited range of motion. When I asked Dr Gustavo about this, he replied, "How old are you?" I had just turned 65. He condescendingly responded, "Well aren't you getting to an age where you want to slow down and take it easy." I wanted to slap him. I had been looking forward to once again being able to hike, to bicycle, and to play golf and tennis. I can do none of these activities because my new knee is "an old lady's knee" with a limited range of motion. My primary doctor stopped recommending Dr Gustavo after my experience.
On the other hand, Dr Gustavo has done an incredible job of rebuilding a friend's shattered leg and a neighbor's fractured collarbone and arm. I don't know why he exercised such poor judgement when selecting my replacement knee. To this day I am in extreme pain because of this knee.
My advice is to question Dr Gustavo very closely. Do not let him get away with not answering your questions to your satisfaction. If he avoids answering a question or if he is condescending toward you in any way, opt for a different doctor. But this advice is true when selecting any doctor! Good luck.....