ArticleThe Iowa orthopaedic journal2018
Crossed K-Wires Versus Intramedullary Headless Screw Fixation of Unstable Metacarpal Neck Fractures: A Biomechanical Study.
Article in The Iowa orthopaedic journal, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers, 1 of them a synthesis that pooled it.
What it found
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The trial behind it
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Who cites it
7 citing papers in PubMed, 1 synthesis or guideline pooled it, 11 citations in OpenAlex.
- Retrograde Intramedullary Screw Fixation for Metacarpal Fractures: A Systematic Review.Hand (New York, N.Y.) · 2023Pooled it
- Threaded Intramedullary Nails Are Biomechanically Superior to Crossed K-wires for Metacarpal Neck Fractures.Hand (New York, N.Y.) · 2023Trial
- A Biomechanical Comparison of Fixation Techniques in Metacarpal Shaft Fractures.Journal of wrist surgery · 2023Article
- Comparative Bending Strength of Metacarpal Neck Fractures Fixed with Two Types of Intramedullary Screws.The archives of bone and joint surgery · 2023Article
- Morphological Analysis of Metacarpal Shafts With Respect to Retrograde Intramedullary Headless Screw Fixation.Hand (New York, N.Y.) · 2022Article
- Intramedullary Headless Screw Fixation of Metacarpal Fractures: A Radiographic Analysis for Optimal Screw Choice.Hand (New York, N.Y.) · 2022Article
- Controlled active exercise after open reduction and internal fixation of hand fractures.Archives of plastic surgery · 2021Article
Corrections and comments
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Authors and funding
6 authors at 4 institutions in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Background: Intramedullary headless screw (IMHS) has shown promise as an alternative to other fixation devices for metacarpal neck fractures. The purpose of this study was to assess the biomechanical performance of IMHS versus the commonly-used crossed K-wire technique. We hypothesized that IMHS fixation provides superior stability to K-wires. Methods: A metacarpal neck fracture model in 23 human cadaveric metacarpals was created. The specimens were divided into two groups based upon fixation method: Group 1, 3 mm intramedullary headless screw; and Group 2, 0.045 inch crossed K-wires. A cantilever bending model was used to assess load-to-failure (LTF), maximum displacement, energy absorption, and stiffness. Results: The mean LTF was 70.6 ± 30.1 N for IMHS and 97.5 ± 34.7 N for crossed K-wires. Mean stiffness was 11.3 ± 3.4 N/mm and 17.7 ± 7.8 N/mm for IMHS and crossed K-wires, respectively. The mean maximum displacement was 20.2 ± 4.6 mm for IMHS and 24.1 ± 3.7 mm for crossed K-wires. Moreover, mean energy absorption was 778.3 ± 528.9 Nmm and 1095.9 ± 454.4 Nmm, respectively, for IMHS and crossed K-wires. Crossed K-wires demonstrated significantly higher stiffness and maximum displacement than IMHS (p < 0.05). Conclusions: IMHS fixation of unstable metacarpal neck fractures offers less stability compared to crossed K-wires when loaded in bending. Clinical Relevance: Crossed K-wires offer superior stability for the treatment of metacarpal neck fractures. These results reveal that IMHS fixation is less favorable biomechanically and should be cautiously selected with regards to fracture stability.
Indexed as
Identifiers
30104939PMC6047383W2896634671What 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.