ArticleJournal of orthopaedic surgery and research2024
Torsional stability of fixation methods in basicervical femoral neck fractures: a biomechanical study.
Article in Journal of orthopaedic surgery and research, 2024. 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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Who cites it
4 citing papers in PubMed.
- Mechanical effects of valgus osteotomy angle and re-fixation strategies on re-fixation of the femoral neck fracture: a finite element analysis.BMC musculoskeletal disorders · 2026Article
- Comparative strain‑gauge analysis of Gamma3 and Gamma3 reconstruction nails in unstable basicervical femur fractures: a pilot biomechanical study.International orthopaedics · 2026Article
- Torsional Stability of the Femoral Neck System for Pauwels Type III Femoral Neck Fracture Fixation: A Finite-element Analysis.Journal of the American Academy of Orthopaedic Surgeons. Global research & reviews · 2026Article
- Biomechanical Analysis of Fixation Strength in Unstable Intertrochanteric Femoral Fracture Models Based on the Caput-Collum-Diaphyseal Angle of Cephalomedullary Nails and Position of Lag Screws.Journal of clinical medicine · 2025Article
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Authors and funding
4 authors.
Funding
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Abstract
backgroundBasicervical femoral neck fracture is a rare proximal femur fracture with a high implant failure rate. Biomechanical comparisons between cephalomedullary nails (CMNs) and dynamic hip screws (DHSs) under torsion loading are lacking. This study compared the biomechanical performance of three fixations for basicervical femoral neck fractures under torsion load during early ambulation.
methodsThe biomechanical study models used three fixations: a DHS, a DHS with an anti-rotation screw, and a short CMN. Finite element analysis was used to simulate hip rotation with muscle forces related to leg swing applied to the femur. The equivalent von Mises stress (EQV) on fixation, fragment displacement, and strain energy density at the proximal cancellous bone were monitored for fixation stability.
resultsThe EQV of the short CMN construct (304.63 MPa) was comparable to that of the titanium DHS construct (293.39 MPa) and greater than that of the titanium DHS with an anti-rotation screw construct (200.94 MPa). The proximal fragment displacement in the short CMN construct was approximately 0.13 mm, the greatest among the constructs. The risk of screw cutout for the lag screw in short CMNs was 3.1-5.8 times greater than that for DHSs and DHSs with anti-rotation screw constructs.
conclusionsTitanium DHS combined with an anti-rotation screw provided lower fragment displacement, stress, and strain energy density in the femoral head than the other fixations under torsion load. Basicervical femoral neck fracture treated with CMNs may increase the risk of lag screw cutout.
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