This chapter aims to introduce some elements of reflection regarding the use of an augmented reality platform for patient-specific hip and knee joint arthroplasties. The chapter is composed of three main parts. The first part proposes a brief presentation of the ‘reality concept’ and the recent technological progresses that have made this new technology ready for use in the OR. The second part describes the augmented reality process and addresses the technological bottlenecks, which still need to be addressed. The last part provides several case examples, using such technology in the OR.
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