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Robotics and Navigation as Learning Tools for Fellows Training in Hip Arthroplasty
Jacob Shapira1, Samantha C Diulus, Philip J Rosinsky
1From the American Hip Institute Research Foundation (Dr. Shapira, Ms. Diulus, Dr. Rosinsky, Dr. Maldonado, Dr. Lall, and Dr. Domb), the American Hip Institute (Dr. Lall and Dr. Domb), Des Plaines, IL, and AMITA Health St. Alexius Medical Center, Hoffman Estates, IL (Dr. Lall and Dr. Domb).
Summary
Fellows
Area of Science:
- Orthopedic surgery
- Surgical technology
- Medical education
Background:
- Implant malpositioning is linked to complications in total hip arthroplasty.
- Robotic systems enhance implant placement accuracy.
- These technologies can serve as valuable training tools.
Purpose of the Study:
- To assess the accuracy of surgical fellows' estimations of acetabular implant positioning.
- To evaluate the learning potential of robotic systems in orthopedic training.
Main Methods:
- Prospective data collection during total hip arthroplasty (September-December 2019).
- Fellows estimated cup inclination and version before robotic-assisted placement.
- Estimations were compared to actual robotic measurements.
Main Results:
- Significant differences found between estimated and actual cup inclination (7.24°) and version (4.81°).
- A substantial percentage of cups (43.47%-69.57%) would fall outside safe zones without robotic guidance.
- Broach version estimation also showed variability (mean difference 7.00°).
Conclusions:
- Fellows' estimations of acetabular implant anteversion differ significantly from actual placement.
- Manual implant positioning frequently risks placement outside established safe zones.
- Robotic systems offer a crucial learning tool for fellows to identify and correct positioning inaccuracies.
