ArticleJournal of orthopaedics and traumatology : official journal of the Italian Society of Orthopaedics and Traumatology2023
Correct positioning of the calcar screw leads to superior results in proximal humerus fractures treated with carbon-fibre-reinforced polyetheretherketone plate osteosynthesis with polyaxial locking screws.
Article in Journal of orthopaedics and traumatology : official journal of the Italian Society of Orthopaedics and Traumatology, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers, 1 of them a synthesis that pooled it.
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11 citing papers in PubMed, 1 synthesis or guideline pooled it, 12 citations in OpenAlex.
- Reverse arthroplasty compared to hemiarthroplasty and open reduction and internal fixation for displaced proximal humerus fracture in patients above 60: a Bayesian network meta-analysis.Archives of orthopaedic and trauma surgery · 2025Pooled it
- Uniaxial versus polyaxial plating in tibial plateau fractures: a pilot prospective randomized controlled trial.European journal of orthopaedic surgery & traumatology : orthopedie traumatologie · 2025Trial
- Analysis of factors associated with persistent night pain after locking plate fixation of proximal humerus fractures and development of a prediction model.BMC musculoskeletal disorders · 2026Observational
- Distal radius T-shaped locking plate with suture anchors for humeral greater tuberosity fracture with rotator cuff injury: A case report.SAGE open medical case reports · 2026Article
- Fluoroscopic Evaluation of Reduction and Plate Positioning in Proximal Humerus Fractures: A Case-Control Study Comparing CFR-PEEK and Metallic Plates.The archives of bone and joint surgery · 2026Article
- DeltopectoralWorld journal of orthopedics · 2025Article
- [Proximal humerus fracture: old and new, established and doubtful, conservative and operative aspects].Unfallchirurgie (Heidelberg, Germany) · 2025Review
- Clinico-radiological outcomes of four-part proximal humerus fracture fixation with fibular strut graft augmentation.European journal of orthopaedic surgery & traumatology : orthopedie traumatologie · 2025Article
- The VIDIA BONE score as a patient- and fracture-related risk score for the occurrence of fracture sequelae in proximal humerus fractures.BMC musculoskeletal disorders · 2024Article
- Clinical and radiographic results of locking plate with medial support screw in Proximal Humerus fracture - the more, the better?BMC musculoskeletal disorders · 2024Article
- Valgising angular stable plate fixation in the treatment of multifragmentary proximal humeral fractures in elderly patients.Archives of orthopaedic and trauma surgery · 2024Article
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Authors and funding
7 authors at 3 institutions in 3 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundPlate osteosynthesis with implants made of carbon-fibre-reinforced polyetheretherketone (CFR-PEEK) has recently been introduced for the treatment of fractures of the proximal humerus (PHFs). The advantages of the CFR-PEEK plate are considered to be its radiolucency, its favourable modulus of elasticity, and the polyaxial placement of the screws with high variability of the angle. The primary aim of this study is to investigate the influence of calcar screw positioning on the complication and revision rates after CFR-PEEK plating of PHFs. The secondary aim is to assess its influence on functional outcome. MATERIAL AND
methodsPatients were identified retrospectively. Minimum follow-up was 12 months. The cohort was divided into two groups depending on the distance of the calcar screw to the calcar (group I: < 12 mm, group II: ≥ 12 mm). The range of motion (ROM), Subjective Shoulder Value Score (SSV) and Constant-Murley Score (CS) were analysed at follow-up examination. Subjective complaints, complications (e.g. humeral head necrosis, varus dislocation) and the revision rate were evaluated.
results51 patients (33 female, 18 male) with an average age of 68.6 years were included after a period of 26.6 months (group I: 32 patients, group II: 19 patients). Apart from the gender distribution, no significant differences were seen in the patient characteristics. The outcome scores showed significantly better clinical results in group I: SSV 83.4 vs 71.2, p = 0.007; CS 79.1 vs 67.8, p = 0.013. Complications were seen less frequently in group I (18.8 % vs 47.4 %, p = 0.030).
conclusionThis study shows that the positioning of the calcar screw is relevant for CFR-PEEK plate osteosynthesis in PHFs with a good reduction of the fracture. Optimal positioning of the calcar screw close to the calcar (< 12 mm) is associated with a lower rate of complications, resulting in significantly superior functional outcomes. LEVEL OF EVIDENCE: III, retrospective cohort study.
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