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Updated: Apr 24, 2026
A Spine Robotic-Assisted Navigation System for Pedicle Screw Placement
Published on: May 11, 2020
Precision Redefined: Robotics and Navigation in Spine Surgery - A Leap Forward or a Technology in Search of Purpose?
Óscar L Alves1,2, Kai-Uwe Lewandrowski3,4,5, Emmanouil Liodakis6
1Head of Neurosurgery, Hospital Lusíadas Porto, Portugal.
Study Design:
Literature review and international cross-sectional survey with Rasch psychometric analysis.
Objective:
To evaluate the clinical, economic, and operational impact of navigation and robotics in spine surgery by integrating evidence from the best literature and real-world surgeon practice patterns.
Summary Of Background Data:
Robotics and computer-assisted navigation (CAN) are increasingly adopted in spine surgery, with well-documented technical advantages in surgical accuracy and safety. However, their translation into improved patient outcomes, cost-effectiveness, and broad real-world applicability remains uncertain.
Methods:
A scoping review and synthesis of published studies and meta-analyses was performed. In parallel, a 93-item international survey was distributed to spine surgeons across multiple countries, capturing perceptions of accuracy, radiation safety, costs, training, workflow, and patient outcomes. Responses (n = 195) were analyzed using Rasch modeling to assess consensus strength and item difficulty, supplemented by descriptive statistics.
Results:
Published data and meta-analyses confirm superior screw accuracy with robotics/CAN (≥95% safe-zone placement) and consistent reductions in staff radiation. Real-world surgeon survey responses showed high concordance on these technical benefits but persistent concerns regarding cost (37.4%), equipment availability (55.9%), workflow burden, and limited training access (8.2%). While 74.9% of surgeons anticipated global adoption as standard of care within 10 years, only 52.3% endorsed cost justification. Rasch analysis demonstrated strong consensus on accuracy and complication reduction but skepticism regarding economic viability.
Conclusion:
Navigation and robotics in spine surgery offer robust technical benefits but remain constrained by cost, training, and workflow barriers. Balanced integration-expanding applications beyond pedicle screw placement, supported by automation, standardized metrics, and scalable financial models-is essential to realize their full clinical and societal value.
