ArticleEuropean journal of orthopaedic surgery & traumatology : orthopedie traumatologie2021
Risk factors for dislocation after bipolar hemiarthroplasty: a retrospective case-control study of patients with CT data.
Article in European journal of orthopaedic surgery & traumatology : orthopedie traumatologie, 2021. 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.
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Who cites it
7 citing papers in PubMed, 1 synthesis or guideline pooled it.
- 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
- Risk factors for bipolar hemiarthroplasty dislocation: a retrospective cohort study.European journal of orthopaedic surgery & traumatology : orthopedie traumatologie · 2026Article
- Dislocation and Iatrogenic Dissociation of Bipolar Hip Hemiarthroplasty: A Case Series and Literature Review.Journal of orthopaedic case reports · 2026Article
- Intracapsular and extracapsular fracture types and inpatient mortality in failed hemiarthroplasty.BMC musculoskeletal disorders · 2025Article
- Superpath is Superior to Posterolateral Approach for Hemiarthroplasty in Geriatric Patients with High Risk for Dislocation.Clinical interventions in aging · 2025Article
- Posterior acetabular wall morphology is an independent risk factor that affects the occurrence of acetabular wall fracture in patients with traumatic, posterior hip dislocation.European journal of trauma and emergency surgery : official publication of the European Trauma Society · 2023Article
- Hip resection arthroplasty for acute femoral neck fractures in the non-ambulator.OTA international : the open access journal of orthopaedic trauma · 2022Article
Corrections and comments
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Authors and funding
10 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
purposeBipolar hemiarthroplasty has been shown to have a lower rate of dislocation than total hip arthroplasty. However, as the influencing risk factors for bipolar hemiarthroplasty dislocation remain unclear, we aimed to analyse patient and surgeon-specific influencing risk factors for bipolar hemiarthroplasty dislocation.
methodsWe retrospectively analysed patients who were operated between 2012 and 2018 and had dislocated bipolar hemiarthroplasty and matched them to patients without a dislocated bipolar hemiarthroplasty, operated between 2018 and 2019. The study was limited to patients who received either a pre- or postoperative pelvic computed tomography. Besides demographic, morphologic, and physiologic data, we analysed duration of surgery; ASA score; Charlson Comorbidity Index; Almelo Hip Fracture Score; Parker Score; and acetabular morphology angles including acetabular anteversion angle, posterior acetabular sector angle, posterior wall angle, and acetabular roofing.
resultsWe included nine patients with a dislocated bipolar hemiarthroplasty and 30 with a non-dislocated bipolar hemiarthroplasty. Patient-specific factors prompting a higher risk for dislocated bipolar hemiarthroplasty were longer duration of surgery (min) (115 ± 50 vs. 80 ± 27, p = 0.01); dementia (56% vs. 13%, p < 0.01); smaller posterior acetabular sector angle (°) (96 ± 6 vs. 109 ± 10, p < 0.01); and smaller posterior wall angle (°) (67 ± 6 vs. 77 ± 10, p = 0.02).
conclusionDementia and insufficient posterior wall angle were associated with higher risk of dislocation in bipolar hemiarthroplasty.
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