ArticleJournal of orthopaedic surgery and research2019
Inferomedial cortical bone contact and fixation with calcar screws on the dynamic and static mechanical stability of proximal humerus fractures.
Article in Journal of orthopaedic surgery and research, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers, 1 of them a synthesis that pooled it.
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Who cites it
12 citing papers in PubMed, 1 synthesis or guideline pooled it.
- Wide anatomical variability of PI normative values within an asymptomatic population: a systematic review.Spine deformity · 2023Pooled it
- Injectable synthetic bone graft substitute (GeneX) in the surgical management of benign bone tumours: further experience from a tertiary musculoskeletal oncology centre.European journal of orthopaedic surgery & traumatology : orthopedie traumatologie · 2026Article
- Functional and radiographic assessments of post-traumatic asymmetrical ankle osteoarthritis treatment using supramalleolar osteotomies.European journal of orthopaedic surgery & traumatology : orthopedie traumatologie · 2024Observational
- Comparison of postoperative pain, anxiety, and sleep quality in robotic-assisted and manual total knee replacement surgery.Journal of robotic surgery · 2023Observational
- Anatomical and Clinical Concepts in Distal Radius Volar Ulnar Corner fractures.Journal of wrist surgery · 2022Article
- Anatomical study for the treatment of proximal humeral fracture through the medial approach.Journal of orthopaedic surgery and research · 2022Article
- Effect of Calcar Screw in Locking Compression Plate System for Osteoporotic Proximal Humerus Fracture: A Finite Element Analysis Study.BioMed research international · 2022Article
- A novel surgical approach and technique and short-term clinical efficacy for the treatment of proximal humerus fractures with the combined use of medial anatomical locking plate fixation and minimally invasive lateral locking plate fixation.Journal of orthopaedic surgery and research · 2021Article
- Treatment of 2-Part Proximal Humeral Fractures in Osteoporotic Patients With Medial Calcar Instability Using a PHILOS Plate Plus an Allogeneic Fibula Inserted Obliquely - A Retrospective Study.Geriatric orthopaedic surgery & rehabilitation · 2021Article
- PHILOS Plate Plus Oblique Insertion of Autologous Fibula for 2-Part Proximal Humerus Fractures With Medial Column Disruption: A Retrospective Study.Geriatric orthopaedic surgery & rehabilitation · 2021Article
- Factors associated with maintaining reduction following locking plate fixation of proximal humerus fractures: a population-based retrospective cohort study.JSES international · 2020Article
- Comparison between minimally invasive deltoid-split and extended deltoid-split approach for proximal humeral fractures: a case-control study.BMC musculoskeletal disorders · 2020Article
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9 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundThis study aimed to explore the effect of retaining inferomedial cortical bone contact and fixation with calcar screws on the dynamic and static mechanical stability of proximal humerus fractures treated with a locking plate.
methodsTwelve Synbone prosthetic humeri (SYNBONE-AG, Switzerland) were used for a wedge osteotomy model at the proximal humerus, in four groups. In the cortex contact + screw fixation group and cortex contact group, the inferomedial cortical bone contact was retained. In the screw fixation group and control group, the inferomedial cortical bone contact was not retained. Calcar screw fixation was implemented only in the screw fixation groups. The dynamic and static mechanical stability of the models were tested with dynamic fatigue mechanics testing, quasi-static axial compression, three-point bending, and torsion testing.
resultsThe cortex contact + screw fixation group showed the longest fatigue life and the best stability. There was 35% difference in fatigue life between the cortex contact + screw fixation group and the cortex contact group, 43%between the cortex contact + screw fixation group and screw fixation group, and 63% between the cortex contact + screw fixation group and screw fixation group (P < 0.01). The cortex contact + screw fixation group showed the best axial compressive stiffness, bending stiffness, and torsion stiffness; these were successively decreased in the other three groups (P < 0.01).
conclusionRetaining inferomedial cortical bone contact and fixation with two calcar screws maintained fracture stability with the highest strength and minimum deformation. Of the two methods, restoration of the inferomedial cortical bone support showed better dynamic and static biomechanical properties than placement of calcar screws alone.
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