ReviewJournal of experimental orthopaedics2026
Effect of preservation versus sacrifice of the posterior cruciate ligament on clinical outcomes after medial congruent total knee arthroplasty using mechanical alignment: A systematic review and meta-analysis.
Review in Journal of experimental orthopaedics, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
1 citing paper in PubMed.
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
5 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Purpose: The debate on whether to preserve or sacrifice the posterior cruciate ligament (PCL) during medial congruent (MC) total knee arthroplasty (TKA) is still ongoing. Currently, there is no comprehensive consensus due to the limited evidence on which approach yields better outcomes. This systematic review and meta-analysis aimed to compared the functional outcomes of PCL retaining (PR) versus PCL sacrificing (PS) in MC TKA. Methods: Two independent researchers to find relevant articles, with no time limit until 4 August 2025, searched PubMed/Medline, Scopus, Web of Science and Embase databases. Postoperative functional outcomes were compared between the PR and PS groups, in accordance with preferred reporting items for systematic reviews and meta-analyses guidelines. The Cochran Results: Six cohort studies, including 903 patients, were included. The pooled estimate of the four studies demonstrated that at 3 months after surgery, the mean difference in postoperative KSS score between the PR and PS groups was 1.15, which was not statistically significant (95% CI: -1.11, 3.31). At 12 months after surgery, the mean Knee Society Score (KSS) reached statistical significance in favour of the PR group (MD: 1.97, Conclusions: There appears to be no clinically meaningful difference in PR or PS during MC TKA in improving short-term clinical outcomes based on moderate-certainty evidence (Level IV). In the long term, preserving the PCL may lead to greater improvements in physical function compared to losing the PCL. However, no significant differences were noted in other clinical or functional outcomes, nor in complication rates, between the two groups. Level of Evidence: Level III.
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