ArticleMusculoskeletal surgery2024
Faster improvement in outcome scores in posterior stabilised total knee arthroplasty compared to medial congruent system with posterior cruciate ligament retained.
Article in Musculoskeletal surgery, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.
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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.
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Who cites it
5 citing papers in PubMed.
- 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.Journal of experimental orthopaedics · 2026Review
- Mid-term outcomes of a novel liner design in kinematically-designed cruciate-retaining total knee arthroplasty.World journal of orthopedics · 2026Article
- Medial congruent with posterior cruciate ligament resected achieves similar short term outcome as posterior stabilised total knee arthroplasty.Musculoskeletal surgery · 2025Article
- No single safe zone exists for the valgus cut angle to reproduce neutral mechanical alignment in the presence of femoral bowing in total knee arthroplasty.Musculoskeletal surgery · 2025Observational
- No difference in clinical outcomes when retaining or sacrificing the posterior cruciate ligament in medial congruent total knee replacement. A retrospective study.Musculoskeletal surgery · 2025Article
Corrections and comments
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Authors and funding
5 authors.
Funding
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Abstract
Most studies comparing medial pivot to the posterior stabilised (PS) systems sacrifice the PCL. It is unknown whether retaining the PCL in the Medial Congruent (MC) system may provide further benefit compared to the more commonly used PS system. A retrospective review of a single-surgeon's registry data comparing 44 PS and 26 MC with PCL retained (MC-PCLR) TKAs was performed. Both groups had similar baseline demographics. The PS and MC-PCLR groups had similar pre-operative range of motion (ROM) (PS:104º ± 20º vs. MC-PCLR: 101º ± 19º, p = 0.70), Oxford Knee Score (OKS) (PS: 27 ± 6 vs. MC-PCLR: 26 ± 7, p = 0.62), and Knee Society Scoring System (KS) Function Score (KS-FS) (PS: 52 ± 24 vs. MC-PCLR: 56 ± 23, p = 0.49). The pre-operative KS Knee Score (KS-KS) was significantly lower in the PS group (PS: 44 ± 14 vs. MC-PLR: 53 ± 18, p < 0.05). At 12-months post-operation, there was significant improvement in all parameters (p < 0.01). Both groups had similar ROM (PS: 115º ± 13º vs. MC-PCLR: 114º ± 10º, p = 0.98), OKS (PS: 41 ± 5 vs. MC-PCLR: 40 ± 4, p = 0.50), KS-FS (PS: 74 ± 22 vs. MC-PCLR: 77 ± 16, p = 0.78), and KS-KS (PS: 89 ± 10 vs. MC-PCLR: 89 ± 10, p = 0.89). The PS group had significant improvement in all parameters from preoperation to 3-month postoperation (p < 0.05), but not from 3-month to 1-year postoperation (p ≥ 0.05). The MC-PCLR group continued to have significant improvement from 3-month to 1-year postoperation (p < 0.05). Preserving the PCL when using MC may paradoxically cause an undesired additional restrain that slows the recovery process of the patients after TKA. Compared to MC-PCLR, a PS TKA may expect significantly faster improvement at 3 months post operation, although they will achieve similar outcomes at 1-year post operation.
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Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.