ArticleKnee surgery, sports traumatology, arthroscopy : official journal of the ESSKA2020
High variability of proximal tibial asymmetry and slope: a CT data analysis of 15,807 osteoarthritic knees before TKA.
Article in Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 19 papers, 1 of them a synthesis that pooled it.
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Who cites it
19 citing papers in PubMed, 1 synthesis or guideline pooled it.
- Considerable inter-individual variability of tibial geometric ratios renders bone-implant mismatch unavoidable using off-the-shelf total knee arthroplasty: a systematic review and meta-analysis.Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA · 2023Pooled it
- Lateral unicompartmental knee arthroplasty anatomy, indications, technique, and outcomes: a narrative review.Archives of orthopaedic and trauma surgery · 2025Review
- [The importance of individual knee arthroplasty].Orthopadie (Heidelberg, Germany) · 2025Article
- Variability of three-dimensional knee morphology cannot be effectively assessed using a coronal plane knee alignment classification in total knee arthroplasty patients.Journal of experimental orthopaedics · 2024Article
- Effect of Posterior Tibial Slope on Knee Kinematics After Bicruciate-Retaining Total Knee Arthroplasty.Arthroplasty today · 2024Article
- Evaluation of the relationship of posterior tibial slope with gender and age in Turkish population with 3 different methods.BMC musculoskeletal disorders · 2024Article
- Improved Knee Function with Customized vs. Off-the-Shelf TKA Implants-Results of a Single-Surgeon, Single-Center, Single-Blinded Study.Journal of personalized medicine · 2023Article
- Posterior rim loading of a low-conforming tibial insert in unrestricted kinematic alignment is caused by rotational alignment of an asymmetric baseplate designed for mechanical alignment.Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA · 2023Article
- No influence of posterior tibial slope change on outcomes after cruciate-retaining total knee arthroplasty: a prospective cohort study.Archives of orthopaedic and trauma surgery · 2023Article
- Cutting-Edge Approaches in Arthroplasty: Before, during and after Surgery.Journal of personalized medicine · 2022Article
- Comparison of the Tibial Posterior Slope Angle Between the Tibial Mechanical Axis and Various Diaphyseal Tibial Axes After Total Knee Arthroplasty.Arthroplasty today · 2022Article
- Determining the rotational alignment of the tibial component referring to the tibial tubercle during total knee arthroplasty: the tibial tubercle-trochlear groove can be an aid.Journal of orthopaedic surgery and research · 2022Article
- High inter- and intraindividual differences in medial and lateral posterior tibial slope are not reproduced accurately by conventional TKA alignment techniques.Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA · 2022Article
- The Impact of Total Knee Replacement with a Customized Cruciate-Retaining Implant Design on Patient-Reported and Functional Outcomes.Journal of personalized medicine · 2022Article
- Contemporary knee arthroplasty: one fits all or time for diversity?Archives of orthopaedic and trauma surgery · 2021Review
- CT Morphometric Analysis of Medial Tibial Condyles: Are the Currently Available Designs of Unicompartmental Knee Arthroplasty Suitable for Indian Knees?Indian journal of orthopaedics · 2021Article
- Patient Satisfaction, Functional Outcomes, and Implant Survivorship in Patients Undergoing Customized Unicompartmental Knee Arthroplasty.Journal of personalized medicine · 2021Article
- [New technologies (robotics, custom-made) in unicondylar knee arthroplasty-pro].Der Orthopade · 2021Review
- [Why individualized endoprosthetics for the knee?]Der Orthopade · 2020Review
Corrections and comments
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Authors and funding
6 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
purposeAs the correct rotational and sagittal alignment of the tibial tray are of key importance for optimal total knee arthroplasty (TKA) function, the objective of this study was to determine these individual variations in the proximal tibial geometry in terms of posterior tibial slope (PTS) and tibial surface asymmetry by analysing a large dataset of computer tomography (CT) information.
methodsA retrospective two-part review was performed on 15,807 datasets that were generated during the design phase for a customized TKA implant. First, 15807 CAD (computer-aided-design) models derived from CT data were used to conduct the analysis on the variation of the PTS. Second, the axial cut of each proximal tibia in a consecutively selected subset of 2202 datasets was used to measure the tibial asymmetry.
resultsThe majority (65.5%) of tibiae had a posterior slope between 5° and 10°, while 26.5% of knees had a slope > 10°. The asymmetry measured as offset between the lateral and medial posterior boundaries was highly variable, with overall an increasing proportion of patients with high asymmetry with increasing tibial ML width. Only 14% of tibiae exhibited symmetric (< 2 mm offset) lateral and medial plateaus, and 22% had an offset > 5 mm.
conclusionThis study from an extraordinary large data base reveals that tibial posterior slope and asymmetry of the tibial profile vary largely between patients receiving TKA with increasing tibial asymmetry with ML width. CT scans might help to preoperatively better select the best fitting TKA, otherwise surgeons intraoperatively will often have to deal with compromises regarding fitting, sizing and rotational issues. LEVEL OF EVIDENCE: Retrospective case series, Level IV.
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