The patient, female, 80 years old, retired from the Petroleum Exploration and Development Institute, suffered from joint disease at the age of 24 and pushed a cart around for medical treatment after she turned 60. In September 2013, she fell and fractured her lumbar vertebrae and underwent a minimally invasive surgery in our hospital. Since then, he has said goodbye to the trolley he had been using for 20 years. Knee arthroplasty (day of discharge) Knee arthroplasty (day of discharge) Knee arthroplasty (orthotropic) Post-operative review of the general phase