Augmented reality-based navigation system for wrist arthroscopy: feasibility.
OBJECTIVE
In video surgery, and more specifically in arthroscopy, one of the major problems is positioning the camera and instruments within the anatomic environment. The concept of computer-guided video surgery has already been used in ear, nose, and throat (ENT), gynecology, and even in hip arthroscopy. These systems, however, rely on optical or mechanical sensors, which turn out to be restricting and cumbersome. The aim of our study was to develop and evaluate the accuracy of a navigation system based on electromagnetic sensors in video surgery.


METHODS
We used an electromagnetic localization device (Aurora, Northern Digital Inc., Ontario, Canada) to track the movements in space of both the camera and the instruments. We have developed a dedicated application in the Python language, using the VTK library for the graphic display and the OpenCV library for camera calibration.


RESULTS
A prototype has been designed and evaluated for wrist arthroscopy. It allows display of the theoretical position of instruments onto the arthroscopic view with useful accuracy.


CONCLUSIONS
The augmented reality view represents valuable assistance when surgeons want to position the arthroscope or locate their instruments. It makes the maneuver more intuitive, increases comfort, saves time, and enhances concentration.
Department of Hand Surgery, Strasbourg University Hospitals, France ; Institut de Recherche sur les Cancers de l'Appareil Digestifs, Strasbourg, France.
Ahmed
A
Zemirline
Institut de Recherche sur les Cancers de l'Appareil Digestifs, Strasbourg, France.
Vincent
V
Agnus
Institut de Recherche sur les Cancers de l'Appareil Digestifs, Strasbourg, France.
Luc
L
Soler
Institut de la Main, Paris, France.
Christophe L
CL
Mathoulin
Department of Plastic, Reconstruction, and Hand Surgery, Academic Medical Center, University of Amsterdam, The Netherlands.
Miryam
M
Obdeijn
Department of Hand Surgery, Strasbourg University Hospitals, France.
Philippe A
PA
Liverneaux
arthroscopy; augmented reality; computer-guided surgery; wrist