Complications of knee replacement surgery include failure of prosthesis, infection, deep vein thrombosis and injury to nerves or blood vessels.
Complications of knee replacement surgery are more common in older patients and those suffering from other illnesses including obesity. These include
Failure of implant
which may require repeat surgery. It may occur due to wearing out of the prosthesis or loosening off of the components. Surgeons with experience show a higher success rate compared to those who perform rarer knee replacement surgeries.
Delayed healing of wound Infection.
Patients with rheumatoid arthritis, diabetes, obesity and those taking corticosteroids may be at increased risk of infection Deep vein thrombosis
. Clots may form in the deep veins. These could travel via the blood into the lungs and lead to a life threatening condition called pulmonary embolism. They could also travel to the heart and result in a heart attack. Blood thinners may be administered during surgery to patients who are at a very high risk of suffering from deep vein thrombosis Pneumonia Fracture of the knee cap Instability, stiffness and malalignment of the knee joint Injury to the nerves or blood vessels Anemia
due to blood loss that may need blood transfusion Difficulty in squatting or kneeling
near the surgical scar, and mechanical noises
from the knee