Early national comparison of robotic versus conventional knee replacements for arthritis using National Joint Registry data: target trial emulation study.

Robotic and conventional knee replacements show similar five-year implant survival rates of around 98%, with no significant difference in revision risk in early UK comparisons.

• Why it matters: Understanding whether robotic surgery offers better outcomes than conventional methods is crucial for healthcare decision-making, especially given the higher costs associated with robotic technology.
• What they did: The study analyzed 697,145 knee replacements from the UK National Joint Registry between 2018 and 2024, using propensity score matching and statistical models to compare survival, revision, and complication rates.
• The result: Findings indicate no significant differences in revision risk, cause-specific revisions, or intraoperative complications between robotic and conventional procedures, emphasizing the need for careful evaluation of robotic technology's value in publicly funded systems.