Accurate implant positioning is crucial in knee replacement surgery to ensure optimal outcomes and longevity of the implant. Importance: 1. Improved function: Accurate positioning ensures proper joint alignment and function 2. Reduced wear: Proper positioning reduces wear on the implant and surrounding tissue 3. Longer implant life: Accurate positioning increases implant lifespan 4. Reduced risk of complications: Proper positioning reduces risk of complications, such as dislocation or loosening Factors affecting accurate positioning: 1. Surgical technique: Surgeon's skill and experience 2. Imaging: Accurate imaging and planning 3. Instrumentation: Use of precise instrumentation and navigation systems 4. Patient factors: Patient anatomy and bone quality Methods to achieve accurate positioning: 1. 3D planning: Use of 3D imaging and planning to plan surgery 2. Computer navigation: Use of computer navigation systems to guide surgery 3. Robotic assistance: Use of robotic systems to assist with surgery 4. Intraoperative imaging: Use of intraoperative imaging to verify positioning