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Press-fit cementless acetabular fixation with and without screws
Sheng-Hui Ni1, Lei Guo, Tian-Long Jiang
1Department of Orthopedic Surgery, First Affiliated Hospital, China Medical University, Shenyang, Liaoning, 110001, People's Republic of China.
International Orthopaedics
|August 29, 2013
Summary
Screws do not significantly improve cementless acetabular fixation in total hip arthroplasty (THA). This meta-analysis found no difference in revisions, migration, or osteolysis between acetabular cups with and without screws.
Area of Science:
- Orthopedic Surgery
- Biomaterials Science
- Medical Engineering
Background:
- Cementless acetabular fixation is a standard technique in total hip arthroplasty (THA).
- The role of supplementary screws in enhancing acetabular cup fixation remains a topic of clinical discussion.
Purpose of the Study:
- To conduct a meta-analysis comparing cementless acetabular cup fixation with and without screws in THA.
- To evaluate the impact of screw use on primary and secondary fixation.
Main Methods:
- Systematic literature search of Embase, PubMed, and Cochrane Library up to May 2013.
- Inclusion of five randomized controlled trials involving 1,130 total hip arthroplasties.
- Meta-analysis using RevMan 5.0, assessing revisions, migration, and osteolysis.
Main Results:
- Pooled data from five trials (1,130 THAs) showed no statistically significant differences.
- No significant variations were observed in revision rates, cup migration, or osteolysis between fixation methods.
Conclusions:
- Cementless acetabular fixation in THA with or without screws yields comparable outcomes.
- Screws do not demonstrate a significant benefit regarding revisions, migration, or osteolysis in this meta-analysis.
