ArticleKnee surgery, sports traumatology, arthroscopy : official journal of the ESSKA2016
Oversizing the tibial component in TKAs: incidence, consequences and risk factors.
Article in Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 50 papers, 4 of them syntheses that pooled it.
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50 citing papers in PubMed, 4 syntheses or guidelines pooled it, 100 citations in OpenAlex.
- Comparison of the coverage and rotation of asymmetrical and symmetrical tibial components: a systematic review and meta-analysis.BMC musculoskeletal disorders · 2024Pooled 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
- Sexual dimorphism and racial diversity render bone-implant mismatch inevitable after off-the-shelf total knee arthroplasty: a systematic review and meta-analysis.Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA · 2022Pooled it
- Current state of computer navigation and robotics in unicompartmental and total knee arthroplasty: a systematic review with meta-analysis.Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA · 2016Pooled it
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- Minimum ten years follow-up of total knee arthroplasty using morphometric implants in patients with osteoarthritis.International orthopaedics · 2026Article
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- Virtual cutting-based morphological differences in osteoarthritic and healthy knees: Implications for total knee arthroplasty prosthesis design.Chinese journal of traumatology = Zhonghua chuang shang za zhi · 2025Observational
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- [The importance of individual knee arthroplasty].Orthopadie (Heidelberg, Germany) · 2025Article
- Mid-to-long-term outcomes of posterior-stabilized type total knee arthroplasty in asian patients: A single-center retrospective cohort study.Journal of orthopaedics · 2025Article
- Sex differences of proximal tibia anthropometry in a Chinese population: comparison with sizing of tibial implants.Journal of orthopaedic surgery and research · 2025Article
- High patient satisfaction with Customized Total Knee Arthroplasty at five year follow-up.International orthopaedics · 2024Article
- Are asymmetric designs of tibial components superior to their symmetric counterparts for constrained condylar total knee arthroplasty using metal block augmentation?Arthroplasty (London, England) · 2024Article
- Intra- and inter-operator reliability of three-dimensional preoperative planning in total knee arthroplasty.Archives of orthopaedic and trauma surgery · 2024Article
- The accuracy of preoperative implant size prediction achieved by digital templating in total knee arthroplasty is not affected by the quality of lateral knee radiographs.Journal of experimental orthopaedics · 2024Article
- Tibial morphology of symptomatic osteoarthritic knees varies according to location: a retrospective observational study in Japanese patients.Scientific reports · 2024Observational
- A review of the design, manufacture, and outcomes of custom total joint replacement implants available in the United States.Journal of clinical orthopaedics and trauma · 2024Review
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Authors and funding
5 authors at 2 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
purposeThe incidence of anteroposterior overhang of the tibial component after TKA and its effect on clinical outcome were investigated, and the morphometric characteristics of the knees in which tibial baseplates were oversized were identified.
methodOne hundred and fourteen consecutive TKAs were retrospectively assessed. The dimensions of the tibia were measured on a pre-operative CT scan and were compared with those of the implanted tibial component. We analysed the effect of anteroposterior and mediolateral size variations on clinical outcomes 1 year after surgery.
resultsAn anteroposterior overhang was observed in 87 % of cases on the lateral plateau, in 88 % on the central plateau and in 25 % on the medial tibial plateau. The mean post-pre-operative size differences were 3.2 ± 2.7, 2.8 ± 2.7 and -1.6 ± 2.3 mm, respectively. (Positive value means oversizing). A mediolateral overhang of the tibial component was found in 61 % of the patients. Oversizing was significantly greater and more frequent in females. Patients oversized in the anteroposterior dimension had lower post-operative pain scores. Patients with mediolateral oversizing had decreased flexion 1 year after surgery. Anteroposterior oversizing was observed more frequently in patients with asymmetric tibial plateaus, while mediolateral oversizing was observed more frequently in patients with small tibias.
conclusionsThis study demonstrates that the incidence of oversized tibial plateau components is surprisingly high and that functional outcomes are lower in the case of mediolateral or anteroposterior oversizing. The risk of oversizing could be predicted as it occurs predominantly in patients with asymmetric proximal tibia and/or small tibia. LEVEL OF EVIDENCE: IV.
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