Understanding why knee replacement surgery fails is crucial for long-term joint health. At KK Swara Super Speciality Hospital in Uppal , Hyderabad, experts explain that failures may occur due to infection, implant loosening, improper alignment, wear of prosthetic components, nerve damage, or poor bone quality. Patient-related factors such as obesity, uncontrolled diabetes, inadequate rehabilitation, or high-impact activities can also affect outcomes. Delayed diagnosis of comp