What question did this study set out to answer?

To examine the impact of coronal plane alignment changes on in vivo kinematics and outcomes after robotic-assisted total knee arthroplasty.

May 28, 2026Journal of Experimental OrthopaedicsOpen Access

Coronal plane alignment changes do not affect in vivo kinematics for robotically performed total knee arthroplasty

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To examine the impact of coronal plane alignment changes on in vivo kinematics and outcomes after robotic-assisted total knee arthroplasty.
Retrospective analysis of a registry of primary robotic-assisted TKAs from 2019 to 2023.
Fluoroscopy used to assess weight-bearing kinematics with 3D-to-2D registration
Statistical comparisons between cohorts with CPAK change (n=33) and no change (n=9) were performed.
No significant differences in maximum flexion between CPAK change (105°) and no change (101°), p=0.42.
Similar improvements in Knee Society Function Score (KSFS) between groups, +28 vs. +17, p=0.16.
Most common post-operative alignment was CPAK 3 at 45.2%.

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Implication

Retrospective analysis shows kinematic outcomes remain unchanged with coronal plane alignment variations in robotic TKA, suggesting alignment flexibility.

Cite This Study

Wong et al. (2026) studied this question.

synapsesocial.com/papers/6a17dcf93fad632b0f9d99fd https://doi.org/10.1002/jeo2.70776

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Implication

Retrospective analysis shows kinematic outcomes remain unchanged with coronal plane alignment variations in robotic TKA, suggesting alignment flexibility.

Coronal plane alignment changes do not affect in vivo kinematics for robotically performed total knee arthroplasty

Key Points

Discussion

Implication

Cite This Study

Coronal plane alignment changes do not affect in vivo kinematics for robotically performed total knee arthroplasty

Key Points

Discussion

Implication

Cite This Study

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