ArticleBMC musculoskeletal disorders2020
Influence of the proximal screws of buttress plates on the stability of vertical femoral neck fractures: a finite element analysis.
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 11 papers.
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11 citing papers in PubMed, 22 citations in OpenAlex.
- Reverse obliquity femoral neck fractures: two case reports with a literature review.Frontiers in surgery · 2026Article
- Finite element analysis of sliding vs static configuration of partial threaded cannulated compression screws for Pauwels type III fracture neck of femur.Journal of clinical orthopaedics and trauma · 2025Article
- Biomechanical evaluation of femoral neck system versus non-sliding fixation in the treatment of young patients with Pauwels type III femoral neck fractures: a finite element analysis.BMC musculoskeletal disorders · 2025Article
- Biomechanical study of a biplanar double support screw (BDSF) technique based on Pauwels angle in femoral neck fractures: finite element analysis.Frontiers in bioengineering and biotechnology · 2024Article
- Effect analysis of medial bracing plate combined with cannulated screw in unstable femoral neck fracture assisted by surgical hip dislocation: a retrospective study.Journal of orthopaedic surgery and research · 2023Article
- Biomechanical study of femoral neck system for young patients with nonanatomically reduced femoral neck fractures: a finite element.BMC musculoskeletal disorders · 2023Article
- Proximal femoral bionic nail-a novel internal fixation system for the treatment of femoral neck fractures: a finite element analysis.Frontiers in bioengineering and biotechnology · 2023Article
- Biomechanical study of internal fixation methods for femoral neck fractures based on Pauwels angle.Frontiers in bioengineering and biotechnology · 2023Article
- Mechanical effects of sagittal variations on Pauwels type III femoral neck fractures treated with Femoral Neck System(FNS).BMC musculoskeletal disorders · 2022Article
- A comparative Study of Novel Extramedullary Fixation and Dynamic Hip Screw in the Fixation of Intertrochanteric Fracture: A Finite-Element Analysis.Frontiers in surgery · 2022Article
- The Effect of Vertical and Oblique Inclinations on Fracture Stability and Reoperation Risks in Femoral-Neck Fractures of Nongeriatric Patient.Frontiers in bioengineering and biotechnology · 2021Article
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Authors and funding
9 authors at 3 institutions in 1 country.
Funding
Abstract
backgroundThe treatment of vertical femoral neck fractures (vFNFs) in young patients remains challenging, with a high complication rate by using traditional techniques. The use of cannulated screws (CSs) combined with a buttress plate represents an alternative approach for treating vFNFs. However, the biomechanical influence of the use or non-use of the proximal screws of buttress plates on vFNFs stability remains unclear. This study aims to analyse the biomechanics of buttress plate fixation with or without the use of proximal screws through finite element analysis (FEA) to further understand this approach.
methodsWe built five vFNFs (Pauwels angle 70°) finite element models treated using three cannulated screws (CS group) or three cannulated screws plus a locking buttress plate (buttress group). In the buttress group, use or non-use of proximal screws was carried out on two types of plates (4-hole & 6-hole). The following seven parameters were analysed to compare biomechanical properties of the five models: the stiffness; the maximal stress of the plate system (plate and screws), CSs and bone (MPS, MCS, MBS); the maximal displacement of internal fixations (plate system & CSs) and bone (MIFD, MBD); and the maximal relative displacement of interfragments (MID).
resultsCompared with CS model, the buttress models exhibited improved biomechanical properties, with increased stiffness and decreased MCS, MBS, MIFD, MBD and MID. The models fixed using buttress plates combined with a proximal screw showed greater stiffness (+ 3.75% & + 8.31% vs + 0.98% & + 4.57%) and MPS (795.6 & 947.2 MPa vs 294.9 & 556.2 MPa) values, and smaller MCS, MBS, MIFD, MBD and MID (- 3.41% to - 15.35% vs - 0.07% to - 4.32%) values than those using the same length plates without a proximal screw.
conclusionsBased on the FEA results, buttress plates can improve construct mechanics, help to resist shear force and prevent varus collapse; under the modelling conditions, the use of a proximal screw on buttress plate may be a key technical feature in improving anti-shearing ability; additionally, this screw may be essential to reduce stress and prevent re-displacement of cannulated screws and fracture fragments.
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