ArticleKnee surgery, sports traumatology, arthroscopy : official journal of the ESSKA2022
High inter- and intraindividual differences in medial and lateral posterior tibial slope are not reproduced accurately by conventional TKA alignment techniques.
Article in Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT05448742 (Novel, Biplanar, Medial Opening Wedge, Posterior Tibial Slope-reducing High Tibial Osteotomy Aided by Patient-specific Instruments, With Tibial Tuberosity Serving as Hinge Axis), which is not on this map. Cited by 14 papers.
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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.
Novel, Biplanar, Medial Opening Wedge, Posterior Tibial Slope-reducing High Tibial Osteotomy Aided by Patient-specific Instruments, With Tibial Tuberosity Serving as Hinge Axis: Cadaveric Study Assessing Accuracy of Biplanar Correction With Various Coronal and Sagittal Amounts of Correction
Who cites it
14 citing papers in PubMed, 26 citations in OpenAlex.
- Posterior tibial slope varies across functional tibial phenotypes but not CPAK categories: A radiographic analysis from the FP-UCBM Knee Study Group.Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA · 2026Article
- Unrestricted kinematic alignment on the sagittal plane: Posterior tibial slope and combined flexion do not have boundaries to respect in terms of short-term clinical outcomes and safety.Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA · 2026Article
- Posterior Tibial Slope Is Highly Variable and Asymmetric in Asian Osteoarthritic Knees: A Three-Dimensional CT Analysis.Journal of clinical medicine · 2026Article
- Preoperative flexion contracture does not impair outcomes or early revision rates following robotic total knee arthroplasty with functional alignment.Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA · 2026Article
- Lateral unicompartmental knee arthroplasty anatomy, indications, technique, and outcomes: a narrative review.Archives of orthopaedic and trauma surgery · 2025Review
- The 'over-the-top' technique allows for accurate and reproducible restoration of the native tibial slope in kinematically aligned total knee arthroplasty: A retrospective comparative analysis from the FP-UCBM Knee Study Group.Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA · 2025Article
- Biplanar radiographic analysis of knee alignment: a stepwise approach for phenotype classification and knee arthroplasty planning.EFORT open reviews · 2025Review
- Article
- 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
- Do age, gender, and region affect tibial slope? A multi-center study.Archives of orthopaedic and trauma surgery · 2023Article
- Comparison of the Tibial Posterior Slope Angle Between the Tibial Mechanical Axis and Various Diaphyseal Tibial Axes After Total Knee Arthroplasty.Arthroplasty today · 2022Article
- Six Commonly Used Postoperative Radiographic Alignment Parameters Do Not Predict Clinical Outcome Scores after Unrestricted Caliper-Verified Kinematically Aligned TKA.Journal of personalized medicine · 2022Article
- 3D-printed patient-specific instrumentation decreases the variability of patellar height in total knee arthroplasty.Frontiers in surgery · 2022Article
- Restoring the Patient's Pre-Arthritic Posterior Slope Is the Correct Target for Maximizing Internal Tibial Rotation When Implanting a PCL Retaining TKA with Calipered Kinematic Alignment.Journal of personalized medicine · 2021Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
7 authors at 5 institutions in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
purposeThe purpose of this study was to describe the medial and lateral posterior tibial slope (MPTS and LPTS) on 3D-CT in a Caucasian population without osteoarthritis. It was hypothesised that standard TKA alignment techniques would not reproduce the anatomy in a high percentage of native knees.
methodsCT scans of 301 knees [male:female = 192:109; mean age 30.1 ([Formula: see text] 6.1)] were analysed retrospectively. Tibial slope was measured medially and laterally in relation to the mechanical axis of the tibia. The proportion of MPTS and LPTS was calculated, corresponding to the "standard PTS" of 3°-7°. The proportion of knees accurately reproduced with the recommended PTS of 0°-3° for PS and 5°-7° for CR TKA were evaluated.
resultsInterindividual mean values of MPTS and LPTS did not differ significantly (mean (range); MPTS: 7.2° ( - 1.0°-19.0°) vs. LPTS: 7.2° ( - 2.4°-17.8°), n.s.). The mean absolute intraindividual difference was 2.9° (0.0°-10.8°). In 40.5% the intraindividual difference between MPTS and LPTS was > 3°. When the standard slope of 3°-7° medial and lateral was considered, only 15% of the knees were covered. The tibial cut for a PS TKA or a CR TKA changes the combined PTS (MPTS + LPTS) in 99.3% and 95.3% of cases, respectively.
conclusionA high interindividual range of MPTS and LPTS as well as considerable intraindividual differences were shown. When implementing the recommended slope values for PS and CR prostheses, changes in native slope must be accepted. Further research is needed to evaluate the impact of altering a patient's native slope on the clinical outcome. LEVEL OF EVIDENCE: IV.
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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.