ArticleJournal of orthopaedic surgery and research2023
What is the stable internal fixation for the unstable and osteoporotic supracondylar femoral fractures: a finite element analysis.
Article in Journal of orthopaedic surgery and research, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.
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4 citing papers in PubMed, 2 citations in OpenAlex.
- An Adams' Arch -based anatomical classification system guiding internal fixation strategies for non-displaced femoral neck fractures in elderly patients: a finite element analysis.BMC musculoskeletal disorders · 2026Article
- Finite element analysis of four different fixation methods for the treatment of ipsilateral femoral neck and shaft fractures.BMC musculoskeletal disorders · 2026Article
- Failure analysis and design improvement of retrieved plates from revision surgery.Journal of orthopaedic translation · 2024Article
- Finite element analysis of the effect of residual lateral wall volume on postoperative stability in intertrochanteric fractures.Journal of orthopaedic surgery and research · 2024Article
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Authors and funding
5 authors at 4 institutions in 1 country.
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No grant is acknowledged in the PubMed record.
Abstract
backgroundOsteoporotic supracondylar femoral fractures (OSFF) have historically been managed by the lateral anatomical locking plate with reasonable success. However, for some kinds of unstable and osteoporotic supracondylar femoral fractures (UOSFF), especially with bone defects, unilateral locking plate (ULLP) fixation failed or resulted in implant breakage. This paper is going to explore what is the stable internal fixation for UOSFF by adding the bilateral locking plate (BLLP) fixation.
methodsOSFF models were divided into two groups according to the fracture line type, which would be further subdivided according to their angle of fracture line, presence of bone defect, location, and degree of bone defect. Thereafter, kinds of locking plate fixation were constructed. A 2010-N load was applied to the femoral head, and a 1086-N load was applied to the greater trochanter. In this condition, the maximum von Mises stress distribution of models were investigated.
resultsFirstly, it was obviously found that the stress concentration in the BLLP group was more dispersed than that in the ULLP group. Secondly, according to the fracture line analysis, the stress value of fracture line type in "\" model group was higher than that of "/" model group. Moreover, with the increase in fracture line angle, the stress value of the model increased. Thirdly, from the bone defect analysis, the stress value of the medial bone defect (MBD) model group was higher than that of the lateral bone defect (LBD) model group. And as the degree of bone defect increased, the stress value increased gradually in the model group.
conclusionIn the following four cases, lateral unilateral locking plate fixation cannot effectively stabilize the fracture end, and double locking plate internal fixation is a necessary choice. First, when the angle of the fracture line is large (30, 45). Second, when the fracture line type is "/." Third, when the bone defect is large. Fourth, when the bone defect is medial.
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