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The Stryker Robotic Precision System (RPS) Primary TKA Software application, when used with the Stryker Guidance Systems, is intended to assist the surgeon in providing software-defined spatial boundaries for orientation and reference information to rigid anatomical structures during orthopedic procedures.

The RPS Primary TKA Software application is indicated for use in total knee arthroplasty (TKA) procedures in which the use of stereotactic surgery may be appropriate, and where reference to rigid anatomical bony structures can be identified.

RPS is a total joint bone preparation system to support total knee arthroplasty (TKA) consisting of functionality for intraoperative planning, kinematic analysis, boundary control, and guided resection. The Complete Workflow allows for the placement of Stryker Triathlon CR/PS Total Knee Implants (cemented or cementless), and plans/resects all 6 primary femoral/tibial resections. The Quick-Cut Workflow allows for placement of implants with implant-specific cut guides requiring primary distal femoral and proximal tibial cuts.

A handheld robotic saw is guided via camera visualization in relation to patient anatomy and the surgical plan established intraoperatively. The robotic saw movement is partially controlled by the RPS Console which determines, based on surgical plan and localization data, how the saw actuators need to move within three degrees of freedom (elevation, pitch, roll) to maintain the planned cut plane. The surgeon controls the remaining degrees of freedom.

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