1. Targeting repeatability of a less obtrusive surgical navigation procedure for total shoulder arthroplasty
- Author
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Antony J. Hodgson, Joshua W. Giles, Maciej J K Simon, William D. Regan, and Oded Aminov
- Subjects
Drill ,business.industry ,Computer science ,medicine.medical_treatment ,Biomedical Engineering ,Navigation system ,Health Informatics ,General Medicine ,Repeatability ,Coordinate-measuring machine ,Computer Graphics and Computer-Aided Design ,Arthroplasty ,Standard deviation ,Computer Science Applications ,Software ,Trajectory ,medicine ,Radiology, Nuclear Medicine and imaging ,Surgery ,Computer Vision and Pattern Recognition ,business ,Simulation - Abstract
Surgical navigation systems have demonstrated improvements in alignment accuracy in a number of arthroplasty procedures, but they have not yet been widely adopted for use in total shoulder arthroplasty (TSA). We believe this is due in part to the obtrusiveness of conventional optical tracking systems, as well as the need for additional intraoperative steps such as calibration and registration. The purpose of this study is to evaluate the feasibility of adapting a less-intrusive dental navigation system for use in TSA. We developed a proof-of-concept system based on validated laser-engraved surgical tools recently introduced for use in dental surgery that are calibrated once when manufactured and not recalibrated at time of use. The design also features a notably smaller bone-mounted tracker that can be tracked from a wide range of viewing angles. To assess our system’s performance, we modified the dental surgical software to support guidance of a TSA procedure. We then conducted a user study in which three participants with varying surgical experience used the system to drill 30 holes in a glenoid model. Using a coordinate measuring machine, we determined the resulting drilled trajectory and compared this to the pre-planned trajectory. Since we used a model glenoid rather than anatomical specimens, we report on targeting precision rather than overall procedure precision or accuracy. We found targeting precision
- Published
- 2021