➢ 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.
Investigation performed at the Department of Orthopaedic Surgery, NYU Hospital for Joint Diseases, New York, NY
Disclosure: The authors indicated that no external funding was received for any aspect of this work. On the Disclosure of Potential Conflicts of Interest forms, which are provided with the online version of the article, one or more of the authors checked “yes” to indicate that the author had a relevant financial relationship in the biomedical arena outside the submitted work and “yes” to indicate that the author had other relationships or activities that could be perceived to influence, or have the potential to influence, what was written in this work.
- Copyright © 2017 by The Journal of Bone and Joint Surgery, Incorporated