ArticleBMC musculoskeletal disorders2020
Influence of extension stem length and diameter on clinical and radiographic outcomes of revision total knee arthroplasty.
Article in BMC musculoskeletal disorders, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers.
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Who cites it
15 citing papers in PubMed.
- Aseptic Failure of Tibial Components With Sleeves in Revision Total Knee Arthroplasty: A Novel Radiographic Assessment of Zonal Fixation.Arthroplasty today · 2026Article
- Floating-embedded stems reduce tibial stress shielding in total knee revision arthroplasty.Journal of orthopaedic surgery and research · 2025Article
- Isolated aseptic loosening in total knee arthroplasty: a comprehensive 10-year review of partial vs. total component revisions.BMC musculoskeletal disorders · 2024Article
- Effect of Surgeon Volume on Mechanical Complications after Resection Arthroplasty with Articulating Spacer.Journal of personalized medicine · 2024Article
- Aseptic midterm survival rates between different cemented tibial stem designs in hinged total knee arthroplasty: a 6-year evaluation from the German Arthroplasty Registry.Archives of orthopaedic and trauma surgery · 2024Article
- Global mapping of institutional and hospital-based (Level II-IV) arthroplasty registries: a scoping review.European journal of orthopaedic surgery & traumatology : orthopedie traumatologie · 2024Article
- Article
- Does medullary diameter to stem width ratio and stem length affect outcomes of revision total knee arthroplasties? A case series.Joint diseases and related surgery · 2024Article
- Does sagittal alignment of the femoral component have an impact on radiological loosening and functional results in revision knee arthroplasty?Joint diseases and related surgery · 2023Article
- The anatomical shape of the proximal femur correlates with the distal femur anatomy.Archives of orthopaedic and trauma surgery · 2023Article
- Does stem profile have an impact on the failure patterns in revision total knee arthroplasty?Archives of orthopaedic and trauma surgery · 2023Article
- Unusual Failure of Modular TKA Prosthesis and Screw Migration following Revision Total Knee Arthroplasty.Journal of orthopaedic case reports · 2022Article
- Long-term survival of fully cemented stem in re-revision total knee arthroplasty performed on femur with diaphyseal deformation due to implant loosening.International orthopaedics · 2022Article
- Prostheses option in revision total knee arthroplasty, from the bench to the bedside: (1) basic science and principles.EFORT open reviews · 2022Review
- Comparison of radiographic vs. computed tomography canal filling ratio measurement of stems in revision knee prostheses.Journal of orthopaedicsArticle
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Authors and funding
6 authors.
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No grant is acknowledged in the PubMed record.
Abstract
backgroundExtension stems provide stability to revision total knee arthroplasty (RTKA). Little is known regarding the relationship between stem characteristics and RTKA stability. We aimed to identify the relationship between canal filling ratio (CFR) and aseptic loosening following RTKA.
methodsWe retrospectively reviewed demographics, radiographic parameters, and outcomes associated with RTKA performed between 2008 and 2013 in a tertiary hospital. The inclusion criteria were: revision for aseptic loosening, hybrid fixation, minor bone defect, Zimmer® LCCK prosthesis, and follow-up > 24 months. Using the modified Knee Society radiographic scoring system, radiographic prosthesis loosening was defined as a radiolucent line (RLL) score ≥ 9 on the femoral side or ≥ 10 on the tibial side. We utilized receiver operating characteristic (ROC) curve analysis to evaluate the cutoff value for stem length and diameter in terms of prosthesis loosening or not. Furthermore, CFR-related parameters were analyzed with logistic regression to clarify their relationships with prosthesis loosening.
resultsProsthesis loosening was detected in 17 of 65 patients included. On logistic regression analysis, male sex and severity of the tibial bone defect were associated with loosening. On multivariate analysis, male sex and bone defect severity were associated with loosening on the femoral side, while malalignment was associated with loosening on the tibial side. Protective factors included femoral CFR > 0.85, CFR > 0.7 for > 2 cm, and CFR > 0.7 for > 4 cm, as well as tibial CFR > 0.85.
conclusionsTo minimize loosening post-RTKA, femoral CFR > 0.7 for > 2 cm and tibial CFR > 0.85 are recommended. Risk factors may include male sex, bone defect severity, and malalignment.
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