Not All Robotic-assisted Total Knee Arthroplasty Are the Same

Area of Science:

• Orthopedic Surgery
• Medical Technology
• Biomedical Engineering

Background:

• Healthcare value is increasingly defined by quality outcomes relative to cost.
• Despite advances, nearly 20% of patients report dissatisfaction after primary total knee arthroplasty (TKA).
• Implant positioning and alignment are critical for TKA success; malalignment leads to poor outcomes and increased failure rates.

Purpose of the Study:

• To comprehensively review robotic-assisted TKA.
• To investigate the technology's advantages, disadvantages, and evolution.
• To analyze clinical outcomes and cost-effectiveness to determine added value.

Main Methods:

• Literature review of robotic-assisted TKA systems and outcomes.
• Analysis of historical and contemporary robotic platforms.
• Examination of patient-reported outcome measures (PROMs) data.

Main Results:

• Robotic-assisted TKA offers enhanced control over surgical variables, mitigating errors from imprecise bone cuts and guides.
• Contemporary robotic platforms, combined with high-quality PROMs data, demonstrate clinical effectiveness.
• The technology aims to improve implant positioning, alignment, and soft-tissue balance.

Conclusions:

• Robotic-assisted TKA shows promise in improving patient satisfaction and functional outcomes.
• The technology addresses critical alignment issues that contribute to TKA failure.
• Further analysis of cost-effectiveness is needed to fully understand the added value of robotic systems in TKA.