What does this research mean for the field?

Implant positioning outside industry-defined radiological parameters is associated with significantly greater 1-year MCID attainment in patients undergoing robotic arm-assisted total knee arthroplasty. Novelty: ClaimNovelty.CONFIRMATORY. Consensus alignment: ConsensusAlignment.NEUTRAL.

What question did this study set out to answer?

To explore how preoperative anatomy and surgical decisions affect patient-reported outcomes following robotic arm-assisted total knee arthroplasty.

March 14, 2026Orthopaedic Proceedings

Investigating the Relationship Between Preoperative Anatomy, Implant Positioning, and Patient-Reported Outcomes in Robotic Arm-Assisted Total Knee Arthroplasty

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To explore how preoperative anatomy and surgical decisions affect patient-reported outcomes following robotic arm-assisted total knee arthroplasty.
Retrospective cohort analysis of patients undergoing robotic TKA from 2022 to 2024
Data on patient anatomy, implant positioning, and Oxford Knee Scores were collected
Multivariable logistic regression adjusted for age, sex, baseline scores, and coronal plane alignment
82% of patients experienced a change in CPAK classification post-operation with no significant effect on outcomes
Coronal alignment outside recommended parameters significantly increased 1-year MCID attainment (OR 4.57)
Each degree of alignment correction towards neutral raised the chance of 1-year PROMs MCID attainment by 3%

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Implication

Retrospective cohort study investigates implant positioning's impact on outcomes in robotic knee surgery, suggesting implications for personalized treatment.

Cite This Study

Farrow et al. (2026) studied this question.

synapsesocial.com/papers/69b4fb9db39f7826a300be1b https://doi.org/10.1302/1358-992x.2026.3.007

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Implication

Retrospective cohort study investigates implant positioning's impact on outcomes in robotic knee surgery, suggesting implications for personalized treatment.

Investigating the Relationship Between Preoperative Anatomy, Implant Positioning, and Patient-Reported Outcomes in Robotic Arm-Assisted Total Knee Arthroplasty

Key Points

Discussion

Implication

Cite This Study

Investigating the Relationship Between Preoperative Anatomy, Implant Positioning, and Patient-Reported Outcomes in Robotic Arm-Assisted Total Knee Arthroplasty

Key Points

Discussion

Implication

Cite This Study

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