ArticleKnee surgery, sports traumatology, arthroscopy : official journal of the ESSKA2023
Restoration of preoperative tibial alignment improves functional results after medial unicompartmental knee arthroplasty.
Article in Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers, 1 of them a synthesis that pooled it.
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Who cites it
14 citing papers in PubMed, 1 synthesis or guideline pooled it.
- There is no standardised measurement approach for medial proximal tibial angle after unicompartmental knee arthroplasty: A systematic review.Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA · 2026Pooled it
- Mid-term clinical outcomes of mobile-bearing UKA: a retrospective study on the influence of patellofemoral joint disease, lower limb alignment, and implant positioning.BMC musculoskeletal disorders · 2026Article
- Restoration of pre-arthritic coronal alignment improves joint perception following fixed-bearing medial unicompartmental knee arthroplasty.Frontiers in surgery · 2026Article
- Distinct effects of three knee-preserving surgeries on hip-knee-ankle alignment in patients with knee osteoarthritis.Journal of orthopaedic surgery and research · 2025Article
- Valgus positioning of the femoral component does not compromise short-term clinical outcomes in fixed-bearing unicompartmental knee arthroplasty.European journal of orthopaedic surgery & traumatology : orthopedie traumatologie · 2025Article
- A controlled study of personalized versus standard osteotomy in medial unicompartmental knee osteoarthritis.Journal of orthopaedic surgery and research · 2025Article
- Coronal plane changes in fixed- versus mobile-bearing unicompartmental knee replacements: Clinical and revision outcomes.Journal of experimental orthopaedics · 2025Article
- Targeted adjustment of the posterior tibial slope in unicompartmental knee arthroplasty is feasible without altering the medial proximal tibial angle.Journal of experimental orthopaedics · 2025Article
- Robotic-Assisted Medial Unicompartmental Knee Arthroplasty Provides Better FJS-12 Score and Lower Mid-Term Complication Rates Compared to Conventional Implantation: A Systematic Review and Meta-Analysis.Journal of personalized medicine · 2024Review
- Effect of design and surgical parameters variations in mobile-bearing versus fixed-bearing unicompartmental knee arthroplasty: A finite element analysis.Journal of experimental orthopaedics · 2024Article
- Joint line convergence angle is the most associated alignment factor with the severity of medial knee osteoarthritis.Journal of experimental orthopaedics · 2024Article
- Small change in the arithmetic hip-knee-ankle angle during unicompartmental knee arthroplasty improves early postoperative functional outcomes.Archives of orthopaedic and trauma surgery · 2024Article
- A Lightweight Browser-Based Tool for Collaborative and Blinded Image Analysis.Journal of imaging · 2024Article
- Coronal and sagittal alignment of ankle joint is significantly affected by high tibial osteotomy.Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA · 2023Article
Corrections and comments
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Authors and funding
8 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
purposeThe alignment obtained after unicompartmental knee arthroplasty (UKA) influences the risk of failure. Kinematic alignment after UKA based on Cartier angle restauration is likely to improve clinical outcomes compared with mechanical alignment. The purpose of this study is to analyze the influence of implant alignment and native knee restoration after UKA using the conventional techniques on clinical outcomes.
methodsThis retrospective study included 144 medial UKA patients from 2015 to 2020. Radiographic measurements were performed pre- and postoperatively. Outliers were defined as follows: Δ Cartier > 3° (difference between the preoperative and postoperative Cartier angle); Δ MPTA (Medial Proximal Tibial angle) and postoperative TCA (Tibial Coronal component Angle) > 3° (difference between the positioning of the tibial implant and the preoperative proximal tibial deformity). The Knee injury and Osteoarthritis Outcome Score (KOOS), the International Knee Society (IKS) Function and Knee score, the Forgotten Joint Score (FJS), and the Subjective Knee Value (SKV) were evaluated. A Student t test or a non-parametric Wilcoxon test was used for non-normal data to compare pre- and postoperative values for functional scores and angular measurements. The correlation of postoperative angles with functional outcomes was assessed by the Spearman's rank correlation coefficient.
resultsDuring the inclusion period, 214 patients underwent medial UKA, 71 patients were excluded, and 19 were lost to follow-up leaving 124 patients with 144 knees (20 bilateral UKA) included for analysis with a mean follow-up of 54.7 months ± 22.1 (24-95). The Δ Cartier was significantly correlated with IKS function (R
conclusionFunctional results after medial UKA can be influenced by implant alignment in the coronal plane with slight clinical improvement when positioning the tibial implant close to the preoperative tibial deformity, rather than by restoring the Cartier angle. This series suggests the interest of a more personalized alignment strategy, but these results will have to be confirmed by other controlled studies. LEVEL OF EVIDENCE: IV, retrospective case series.
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