Technological Aids in Total Knee Arthroplasty: Navigation, Patient-Specific Instrumentation, and Robotics

  • Paul L. Sousa
  • Matthew P. AbdelEmail author


Total knee arthroplasty has dramatically enhanced the management of end-stage knee arthritis. Despite advances over the last few decades, some patients continue to be dissatisfied with their arthroplasty. Component alignment has become a focus, as malalignment has persisted despite improvements in surgical technique. While technology such as navigation, patient-specific instrumentation (PSI), and robotic-assisted surgery (RAS) may enhance surgical execution, it remains unclear whether more accurate alignment can actually improve survivorship or patient satisfaction. At the current time, navigation, PSI, and RAS are more costly than conventional techniques. In order for more widespread adoption, incremental clinical gains and enhanced cost-effectiveness must be demonstrated. There are, however, specific cases where advanced technology has a role such as severe extra-articular deformities and obstruction of the femoral canal.


Total knee arthroplasty (TKA) Navigation Computer-assisted surgery (CAS) Patient-specific instrumentation (PSI) Robotic-assisted surgery (RAS) 


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Copyright information

© Springer International Publishing Switzerland 2015

Authors and Affiliations

  1. 1.Department of Orthopedic SurgeryMayo ClinicRochesterUSA

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