Abstract
Purpose
Cementless acetabular fixation for total hip arthroplasty (THA) is widely used. The question of using screws for a better primary and secondary acetabular fixation has been discussed in the literature in recent years. The aim of this meta-analysis was to compare fixation of acetabular cups with and without screws in total hip arthroplasty.
Methods
Electronic databases Embase, PubMed and Cochrane Library were used to search for randomised controlled trials reported through May 2013 of cementless acetabular fixation for THA with and without screws. Two independent reviewers assessed the trials for eligibility and quality. All related data matching our standards were abstracted for meta-analysis by RevMan 5.0. Evaluation criteria included revisions, migration and osteolysis.
Results
A total of 1,130 THAs enrolled into five trials were included in this meta-analysis. All studies compared fixation of acetabular cups with and without screws, and our pooled data showed no statistical significance between the two surgical methods in revision, migration and osteolysis.
Conclusion
There is no significant difference between cementless acetabular fixation for THA with and without screws in revisions, migration or osteolysis.
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Acknowledgments
We are thankful to China Medical University-affiliated Hospital Laboratory Centre for kindly providing the necessary equipment for this study. This work was supported by the National Natural Science Foundation of China (grant numbers 30872724, 81071460, and 81271996), the Natural Science Foundation of Liaoning Province (grant number 201202292).
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The authors declare no conflict of interest.
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Ni, SH., Guo, L., Jiang, TL. et al. Press-fit cementless acetabular fixation with and without screws. International Orthopaedics (SICOT) 38, 7–12 (2014). https://doi.org/10.1007/s00264-013-2075-2
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DOI: https://doi.org/10.1007/s00264-013-2075-2