ArticleOrthopaedic surgery2023
Stability of Three-Dimensional Printed Custom-Made Metaphyseal Cone for Tibial Bone Defects Reconstruction: A Finite Element Analysis and Biomechanical Study.
Article in Orthopaedic surgery, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.
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Who cites it
6 citing papers in PubMed, 7 citations in OpenAlex.
- Managing large type 2a bone defects from osteoporotic tibial plateau fractures : a finite element analysis.Bone & joint research · 2026Article
- Femoral finite element analysis of a novel cementless revision total knee arthroplasty system.Scientific reports · 2026Article
- Mid- to Long-Term Follow-Up Outcomes of Single Design Rotating Hinge Knee in Infected and Noninfected Revision Patients.Orthopaedic surgery · 2026Article
- Short-term results of metaphyseal sleeves in total knee arthroplasty for severe bone defects of the tibia.Journal of orthopaedics · 2025Article
- Biomechanical evaluation of asymmetric metaphyseal cone applications for lateral tibial plateau fractures : a finite element study.Bone & joint research · 2025Article
- Biomechanical Analysis and Solution Suggestions of Screw Replacement Scenarios in Femoral Neck Fracture Surgeries: Finite Element Method.Orthopaedic surgery · 2025Article
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Authors and funding
12 authors at 2 institutions in 1 country.
Funding
Abstract
objectivesThe reconstruction of bone defects in tibial revision knee arthroplasty is challenging. In this study, we evaluated the primary stability of a novel three-dimensional (3D)-printed custom-made metaphyseal cone for Anderson Orthopedic Research Institute (AORI) IIb or III bone defect reconstruction in tibial revision knee arthroplasty using the combination of finite-element analysis and biomechanical experiments.
methodsIn the finite-element analysis, AORI II b and III medial tibial bone defects were designed at varying depths. A novel 3D-printed custom-made metaphyseal cone was designed and used to reconstruct the bone defect with or without a stem in simulated revision total knee arthroplasty (RTKA). A no-stem group and a stem group were established (based on whether a stem was used or not). Von Mises stress and micromotion were calculated with varying depths of bone defects, ranging from 5 mm to 35 mm, and then micromotions at the bone-implant interface were calculated and compared with the critical value of 150 μm. In the biomechanical experiment, the no-stem group was used, and the same bone defects were made in four synthetic tibias using patient-specific instruments. Micromotions at the bone-implant interface were investigated using a non-contact optical digital image correlation system and compared with the critical value of 150 μm.
resultsWhen the bone defect was <30 mm, micromotions at the bone-implant interface in the finite-element analysis were all below 150 μm both in the stem groups and no-stem groups, whereas those in the biomechanical experiment were also below 150 μm in the no-stem group.
conclusionsThe 3D-printed custom-made metaphyseal cone in RTKA has excellent primary stability and does not require stems in reconstructing tibial AORI type IIb or III bone defects with a depth of <30 mm.
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