Navigation and Robotics in Total Hip Arthroplasty

➢ Navigation provides information about patient anatomy and the relative positioning of the implants to guide the surgeon. ➢ Some systems use a robotic arm that assists with specific parts of the procedure on the basis of anatomical information provided to the navigation system. Currently, all total hip arthroplasty robotic systems require preoperative imaging. ➢ Imageless systems rely only on intraoperative landmarks identified by the surgeon and provide feedback about limb alignment and component positioning. ➢ The primary benefits of navigation are a reduction in outliers during acetabular cup positioning and improved accuracy when quantifying limb-length and offset measurements. It remains to be seen whether these benefits translate into meaningful improvements in clinical outcomes.