Image-based vs. Imageless Robotic TKA
James Chow, MD, UNITED STATES Peter James McEwen, MBBS FRACS(Orth) FAOrthA DIpModLang A/Prof, AUSTRALIA Rafael Calvo, MD, CHILE David H. Figueroa, MD, CHILE Andrew D. Pearle, MD, UNITED STATES Justin P. Roe, MB BS BSc(Med) Hons, A/Prof., AUSTRALIA
2025 Congress
Symposium
2025
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Understand the differences and potential benefits and drawbacks of different methods of robotic TKA.
Pros of image based.
- detailed understanding of 3D anatomy
- precise virtual implant position (critical for personalised alignment)
- OR efficiency
- big data set
Cons of image based
- cost
- scheduling / travel
- radiation
- rejected scans
Image based -CT / MR / Xray 2d-3d
Don't forget sagittal and coronal planes -alternative alignment makes the coronal plane very simple. Often the most complex cases are those with extreme sagittal or axial anatomy (huge tibial slope, severe aspect ratio mismatch for the distal femur, aberrant tuberosity location). These are the cases that I find image based most useful for
If imaged based who is doing the planning? Rep, app, surgeon,AI. Who should be doing the planning?
We should definitely have case based discussions and leave room for question time.
topics.
The switch to patient specific alignment and the power of image based robotics (DF)
Image based robotics for complex primary TKA (RC)
What makes a primary TKA complex? Beyond the coronal plane (AP)
Pre-operative imaging, big data and smart robots
Understanding pre-arthritic anatomy and maintaining morphotype (JR)
My robot does it all. Customising care. (JC or PM)
Case based discussion (JC or PM)
UKA v TKA: Are they the same in term of utility of image based (we may not have time to cover this)