Conflict of interest
Raymund Woo is a consultant for Mazor Robotics and has received $3000 for his time. He has also been reimbursed $1500 for travel. Finally, Dr. Woo has received $10,000 to support other research efforts which does not include this project. Jeremy Macke and Laura Varich declare that they have no conflicts of interest.
This study did not receive funding.
All procedures performed in studies involving human participants were in accordance with the ethical standards of the institutional and/or national research committee and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards. For this type of study formal consent is not required.
For this type of study formal consent is not required.