Unipolar Versus Bipolar Hemiarthroplasty for Femoral Neck Fractures: A Meta-Analysis .
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.
Eur J Orthop Surg Traumatol . 2023 Jul;33(5):1449-1462.16 randomized controlled trials (1813 patients) that compared unipolar hemiarthroplasty against bipolar hemiarthroplasty in patients with displaced femoral neck fractures were included in this systematic review and meta-analysis. Outcomes of interest included the incidence of acetabular erosion, Harris Hip Score (HHS), Normalized Pain Scale (NPS), range of motion (ROM), incidence of mortality, dislocation, reoperation, and infection, 6-minute walk-test, and quality of life measured using the EuroQol 5D (EQ-5D) questionnaire. Acetabular erosion at 6 and 12 months, HHS scores at 12 and 24 months, postoperative pain at 12, 24, and 48 months, and the EQ-5D scores at 48 months all favored the bipolar group compared to the unipolar group. All other outcomes were similar between the two groups.
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