Total knee and hip replacements are considered two of the most effective procedures in medicine. In most cases, they allow individuals to enjoy a more active life without chronic pain. However, over time, a knee or hip replacement may fail for various reasons (infection, fracture, recurrent dislocations, loosening), leading to pain, swelling, stiffness, or instability that can hinder daily activities. If this happens, your doctor might suggest a second surgery known as revision total knee or hip replacement, where some or all components of the original prosthesis are removed and replaced with new ones. While both procedures aim to alleviate pain and enhance function, revision surgery is more complex and requires thorough planning, along with specialized implants and tools to ensure a successful outcome.