After the knee replacement surgery ended, Zhang Fan simply typed the medical report on the computer in the operating room so that he wouldn't have to return to orthopedic department #2 and compete over a vacated computer. There really was a large difference between performing surgeries by himself in his System and performing surgeries in real life. In his System, he was able to perform surgery as quickly as he wanted, along with having the System's programmed surgical assistants show him any place that he wanted in the patient's body almost instantly.
But in reality, the surgical assistants were quite human. The primary surgeon and primary surgical assistant would need to get used to each other. But in the System, Zhang Fan had a perfect practice platform, with conditions and programmed assistants that were absolutely perfect.