SynthesisEuropean journal of orthopaedic surgery & traumatology : orthopedie traumatologie2020
Bipolar versus monopolar hemiarthroplasty for displaced femur neck fractures: a meta-analysis study.
Synthesis in European journal of orthopaedic surgery & traumatology : orthopedie traumatologie, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 19 papers, 1 of them a synthesis that pooled it.
What it found
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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
19 citing papers in PubMed, 1 synthesis or guideline pooled it, 41 citations in OpenAlex.
- Patients with femoral neck fractures treated by bipolar hemiarthroplasty have superior to unipolar hip function and lower erosion rates and pain: a systematic review and meta-analysis of randomized controlled studies.European journal of orthopaedic surgery & traumatology : orthopedie traumatologie · 2023Pooled it
- Are There Benefits of Total Hip Arthroplasty with Dual-Mobility Cups Compared to Bipolar Hemiarthroplasty for Femoral Neck Fractures in the Geriatric Population? A Systematic Review and Meta-Analysis of Comparative Studies.Journal of clinical medicine · 2025Review
- Long-term results of hemi-resurfacing and metal-on-metal hip resurfacing for osteonecrosis of the femoral head.Journal of artificial organs : the official journal of the Japanese Society for Artificial Organs · 2024Article
- Unplanned emergency department visits within 90 days of hip hemiarthroplasty for osteoporotic femoral neck fractures: Reasons, risks, and mortalities.Osteoporosis and sarcopenia · 2024Article
- A prediction model for osteonecrosis of femoral head after internal fixation with multiple cannulated compression screws for adult femoral neck fractures.Joint diseases and related surgery · 2024Article
- Long-term risk of reoperation after modular hemiarthroplasty : Any differences between uni- or bipolar design?BMC musculoskeletal disorders · 2023Observational
- The association between three-dimensional measurement of posterior tilt angle in impacted femoral neck fractures and osteonecrosis of the femoral head.BMC musculoskeletal disorders · 2023Article
- The use of a modified posterior approach (SPAIRE) may be associated with an increase in return to pre-injury level of mobility compared to a standard lateral approach in hemiarthroplasty for displaced intracapsular hip fractures: a single-centre study of the first 285 cases over a period of 3.5 years.European journal of trauma and emergency surgery : official publication of the European Trauma Society · 2023Article
- Total hip arthroplasty compared to bipolar and unipolar hemiarthroplasty for displaced hip fractures in the elderly: a Bayesian network meta-analysis.European journal of trauma and emergency surgery : official publication of the European Trauma Society · 2022Review
- Dissociation of Bipolar Hemiarthroplasty of the Hip and Review of Literature.Arthroplasty today · 2022Article
- Intracapsular Femoral Neck Fractures in the Elderly.Revista brasileira de ortopedia · 2022Article
- Lessons learned with the Cobra prosthesis in elderly patients with complex distal radius fractures-a retrospective follow-up study.Archives of orthopaedic and trauma surgery · 2022Article
- Fragility Fractures: Risk Factors and Management in the Elderly.Medicina (Kaunas, Lithuania) · 2021Review
- [Hemiarthroplasty for geriatric femoral neck fractures].Operative Orthopadie und Traumatologie · 2021Article
- Does patient positioning influence blood loss and transfusion rate in hip replacement for femoral neck fractures? A single-centre, retrospective chart review.BMC musculoskeletal disorders · 2021Article
- Article
- Osteonecrosis of femoral head in young patients with femoral neck fracture: a retrospective study of 250 patients followed for average of 7.5 years.Journal of orthopaedic surgery and research · 2020Article
- Risk of Aseptic Revision and Periprosthetic Fracture Following Bipolar Versus Unipolar Hemiarthroplasty.JB & JS open accessArticle
- Article
Corrections and comments
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Authors and funding
6 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
introductionHemiarthroplasty is commonly performed to treat femoral neck fractures. Still, there is a lack of consensus concerning the best component for hemiarthroplasty: unipolar and bipolar implants. Last meta-analysis on this topic is outdated, and an update of current evidences is required. The purpose of this study is to conduct a meta-analysis comparing the unipolar versus bipolar implants for hemiarthroplasty, focusing on the clinical scores, perioperative data, further complications and mortality rate. MATERIALS AND
methodsIn September 2019, the main databases were accessed: all the clinical trials comparing unipolar versus bipolar hemiarthroplasty for displaced femoral neck fractures were considered for inclusion. For the methodological quality assessment, we referred to the PEDro score. For the statistical analysis, we referred to the Review Manager 5.3 (The Nordic Cochrane Collaboration, Copenhagen). For implant survivorship, we referred to the STATA/MP software version 14.1 (StataCorp, College Station, Texas).
resultsA total of 27 articles were considered for inclusion, consisting of 16 randomized and 11 non-randomized clinical trials. A total of 4511 patients were enrolled, undergoing a mean 21.26 months follow-up. A statistically significant reduction in the acetabular erosion was observed in the bipolar group (OR 3.16, P < 0.0001). Although statistically insignificant, the bipolar group reported a reduction in the mean Harris hip score, reduced surgical duration and hospitalization, reduced dislocation and revisions rate. Concerning the mortality, a reduction across all the follow-ups in favor of the bipolar group was detected, but without statistically significance.
conclusionsThis meta-analysis evidenced a reduction in the acetabular erosion after bipolar hemiarthroplasty compared to the unipolar implants. Any statistically significant difference concerning the other endpoints of interest was detected. Current evidence concerning this topic are controversial, and further randomized clinical trials are required.
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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.