Robotic-assisted surgery and functional alignment in total knee arthroplasty: the RASKAL registry-nested 2 × 2 factorial randomized trial.

Samuel J MacDessi; Gregory C. Wernecke; Khashayar Ghadirinejad; Jil A. Wood; Carl Holder; M. Lorimer; Ian A Harris; Durga Bastiras; Richard Boyle; Darren B. Chen; Peiyao Du; Brett Fritsch; Maurice Guzman; George Kirsh; J. Limbers; Peter McEwen; Stephen McMahon; Jonathan Mulford; Helena Oakey; David Penn; Julian Yu

doi:10.1302/0301-620x.108b.bjj-2025-1472.r2

Key Points

To evaluate whether robotic-assisted surgery and functional alignment enhance outcomes compared to computer-assisted and mechanical alignment in total knee arthroplasty.
Conducted a 2 × 2 factorial randomized trial involving robotic-assisted and computer-assisted surgery techniques.
Examined outcomes of functional alignment versus mechanical alignment.
Followed patients for clinical and functional outcomes up to two years post-surgery.
Robotic-assisted surgery did not show superior outcomes compared to computer-assisted surgery.
No significant differences were noted in clinical and functional outcomes at the two-year mark.

Implication

A randomized trial compares robotic-assisted and computer-assisted surgery outcomes in knee arthroplasty, suggesting similar effectiveness.

Abstract

Robotic-assisted surgery and functional alignment were not superior to computer-assisted surgery and mechanical alignment, respectively, in improving clinical and functional outcomes up to two years post-TKA.

Discussion

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Cite This Study

MacDessi et al. (2026) studied this question.

synapsesocial.com/papers/69d894326c1944d70ce051b2 https://doi.org/10.1302/0301-620x.108b.bjj-2025-1472.r2

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Robotic-assisted surgery and functional alignment in total knee arthroplasty: the RASKAL registry-nested 2 × 2 factorial randomized trial.

Key Points

Implication

Abstract

Discussion

Cite This Study

Robotic-assisted surgery and functional alignment in total knee arthroplasty: the RASKAL registry-nested 2 × 2 factorial randomized trial.

Key Points

Implication

Abstract

Discussion

Cite This Study

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