ArticleJournal of orthopaedic surgery and research2022
Biomechanical effects of fixed-bearing femoral prostheses with different coronal positions in medial unicompartmental knee arthroplasty.
Article in Journal of orthopaedic surgery and research, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers.
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Who cites it
10 citing papers in PubMed, 15 citations in OpenAlex.
- Biomechanical consequences of minor medial joint line elevation after medial unicompartmental knee arthroplasty.Journal of orthopaedic surgery and research · 2026Article
- [Biomechanical study on the combined effects of femoral component rotational malalignment and osteoporosis in unicompartmental knee arthroplasty].Sheng wu yi xue gong cheng xue za zhi = Journal of biomedical engineering = Shengwu yixue gongchengxue zazhi · 2026Article
- Biomechanical analysis of femoral component malalignment in medial unicompartmental knee arthroplasty.Scientific reports · 2025Article
- Effect of tibial rotational alignment and posterior slope on joint biomechanics in posterior-stabilized total knee arthroplasty: a finite element study.European journal of medical research · 2025Article
- An investigation into the biomechanical effects of tibial vertical cutting errors on the proximal tibia after unicompartmental knee arthroplasty and the improvement of cutting planes.BMC musculoskeletal disorders · 2025Article
- [Biomechanical effects of medial and lateral translation deviations of femoral components in unicompartmental knee arthroplasty on tibial prosthesis fixation].Sheng wu yi xue gong cheng xue za zhi = Journal of biomedical engineering = Shengwu yixue gongchengxue zazhi · 2025Article
- Medial unicompartmental knee arthroplasty wear prediction using a total knee joint finite element model.Frontiers in bioengineering and biotechnology · 2025Article
- Finite element study of stress distribution in medial UKA under varied lower limb alignment.Scientific reports · 2024Article
- Article
- Application strategy of finite element analysis in artificial knee arthroplasty.Frontiers in bioengineering and biotechnology · 2023Review
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Authors and funding
6 authors at 2 institutions in 1 country.
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No grant is acknowledged in the PubMed record.
Abstract
backgroundTo study the biomechanical effects of femoral prostheses at different coronal positions using finite element analysis and provide a clinical reference for unicompartmental knee arthroplasty (UKA).
methodsA normal knee joint model was established and verified, establishing 13 working conditions for the femoral prosthesis: the standard position, varus and valgus angles of 3°, 6° and 9° and medial and lateral translations of 1 mm, 3 mm and 5 mm. The stress changes at different positions were analysed, including the polyethylene (PE) insert upper surface, the surface of lateral compartment cartilage and the surface of cancellous bone under tibial prosthesis.
resultsThe stresses on the PE insert upper surface and the cancellous bone surface increased with increasing femoral prosthesis valgus/varus, and the stress increased gradually during medial to lateral translation. The stress change is more significant during valgus and lateral translation. However, the stress on the cartilage surface decreases in the process of varus to valgus and medial translation to lateral translation.
conclusionThe fixed-bearing femoral prosthesis of the medial UKA should avoid translation or varus/valgus tilt on the coronal plane as much as possible. The obvious misalignment of the femoral prosthesis will significantly affect the stress on the internal structure of the knee joint, especially the PE insert and cartilage surface. A femoral prosthesis coronal tilt of more than 6° may significantly increase the stress on the PE surface, and varus of more than 6° may significantly increase the stress on the cartilage surface. For the femoral prosthesis position at the distal end of the femoral condyle, it is recommended to be placed in the centre.
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