The risks of knee surgery, like any surgical procedure, include the possibility of infection at the surgical site or within the joint, as well as the formation of blood clots that may travel to the lungs. There is also a risk of bleeding or swelling after the operation.
In rare cases, injury to the surrounding nerves or blood vessels may occur, and some patients may experience knee stiffness or a reduced range of motion. In certain cases, problems related to the implanted prosthetic component, such as wear or loosening over time, may also develop.