ArticleInternational journal of surgery (London, England)2025
Optimisation strategies for intramedullary nailing parameters in subtrochanteric fractures of the femur: a multimodal assessment based on finite element and biomechanical experiments.
Article in International journal of surgery (London, England), 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
0 citing papers in PubMed.
No citing paper in PubMed yet.
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
9 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundSubtrochanteric femur fractures account for 40 % of proximal femur fractures, and intramedullary nailing (IMN) is the treatment of choice, but there is a lack of uniformity in the selection of models. The challenge of individualized adaptation of diameter and length needs to be resolved, as too large or too small may lead to a lack of stability or increased surgical risk.
objectiveTo establish a parametric selection model by analyzing the biomechanical properties of IMNs of different specifications to provide a basis for the clinical optimization of implantation strategies.
methodsFinite element analysis combined with in vitro biomechanical experiments was used to construct a three-dimensional model based on femur CT data from healthy volunteers to assess the stress distribution and displacement characteristics of 15 sets of IMN (10/11/12 mm in diameter and 280-360 mm in length); a Sawbone artificial bone was used to simulate the Seinsheimer II C fracture, and the strain under axial compression was tested, ultimate load and failure mode.
resultThe 12 mm diameter IMN performed optimally biomechanically, with lower displacement and stress peaks than the smaller diameter group, but may exacerbate the femoral neck stress masking effect. Nail length had no significant effect on stress. Re-fracture around the locking screws occurred in all groups at a load of 5 kN, suggesting a mechanically weak zone near the fracture line.
conclusionFor patients with Seinsheimer type IIC subtrochanteric femoral fractures who have good bone quality and a femoral neck anteversion angle ≤15°, this study proposes a personalized selection strategy using CT-based 3D reconstruction of the narrowest medullary cavity diameter, recommending an anatomically matched intramedullary nail (320 mm length) to optimize both mechanical stability and biological healing. The results provide important theoretical support for clinical precision treatment.
Indexed as
Identifiers
What OpenQuestion holds
Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.