Bicruciate-retaining versus cruciate-retaining total knee arthroplasty in implant fixation: a 10-year follow-up of a randomized RSA trial.
Acta OrthopSep 17, 2026 (epub)
Clinical ResearchOrthopedic Surgery
Tomofumi Kinoshita, Kristian R L Mortensen, Lina H Ingelsrud et al.
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In 30 seconds
This randomized controlled trial compared bicruciate-retaining (BCR) total knee arthroplasty (TKA) with cruciate-retaining (CR) TKA over a 10-year follow-up. The study included 25 patients in each group and found no significant differences in tibial implant migration, with mean maximum total point motion of 0.88 mm for BCR and 0.64 mm for CR. However, the BCR group had a higher incidence of revisions.
Key findings
- At 10 years, mean maximum total point motion was 0.88 mm for BCR and 0.64 mm for CR.
- No significant differences in patient-reported outcomes (OKS and FJS) between BCR and CR groups.
- Two revisions occurred in the BCR group, while none occurred in the CR group.
Why it matters
Understanding the long-term outcomes of different TKA techniques is crucial for optimizing patient satisfaction and minimizing complications. This study highlights the importance of careful patient selection for bicruciate-retaining procedures.