ArticleScientific reports2025
Intraoperative gap assessment in robotic-assisted bicruciate retaining TKA for knee osteoarthritis.
Article in Scientific reports, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.
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Who cites it
4 citing papers in PubMed.
- Increased medial component gap at 30° flexion is associated with subjective instability and worse patient-reported outcomes after image-free robot-assisted total knee arthroplasty.Journal of experimental orthopaedics · 2026Article
- Final intraoperative gaps commonly exceed resection-based reference gaps during sequential balancing in imageless robot-assisted total knee arthroplasty.Journal of experimental orthopaedics · 2026Article
- Intentional asymmetric balancing in robotic-assisted valgus TKA: Early outcomes and intraoperative laxity changes.Journal of experimental orthopaedics · 2026Article
- Flexion-dependent differences in tibial rotation measured by navigation and robotic systems during bicruciate-stabilised total knee arthroplasty.Journal of experimental orthopaedics · 2026Article
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3 authors.
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Abstract
Primary robotic-assisted (RA) TKA is becoming increasingly common worldwide. However, there are currently no reports of RA TKA utilizing a bi-cruciate ligament-retaining (BCR) prosthetic design. The aim of this study was to perform intra-operative gap assessment with the goal of improving post-operative patient-reported outcome measures (PROMs) at a mean follow-up of 20.4 months in patients undergoing RA BCR TKA. The study included 33 knees with knee osteoarthritis who underwent BCR TKA using RA techniques. Intra-operative soft tissue balance was assessed by evaluating the medial joint gap (MJG), lateral joint gap (LJG). The femoro-tibial angle (FTA), tibial posterior slope, and the rotational angles of both the femoral components were measured using three-dimensional computed tomography. LJG at 0° of flexion and correction of tibial posterior slope showed a positive correlation with PROMs. In contrast, LJG at 90° of flexion, correction of FTA, and femoral component rotational angle were negatively correlated with PROMs. The area under the curve (AUC) for MJG at 0° was 0.706, with a cut-off value of 1.6 mm identified using the Youden index.
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