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Surface replacement conversion: results depend upon reason for revision
The Bone & Joint Journal
|November 5, 2013
Summary
Revision of surface hip replacement (SHR) yields good clinical outcomes, particularly when addressing mechanical issues. Early intervention is key to managing potential complications and ensuring favorable results for selected patients.
Area of Science:
- Orthopedic Surgery
- Biomaterials Science
- Reconstructive Surgery
Background:
- Surface hip replacement (SHR) offers bone preservation benefits for active patients.
- Assessing the long-term success of SHR revisions is crucial for its continued clinical application.
Purpose of the Study:
- To evaluate the clinical outcomes of surface hip replacement revisions.
- To identify factors influencing revision success and guide future patient selection.
Main Methods:
- Retrospective review of 55 SHR revisions between 2007 and 2012.
- Analysis of revision types, etiologies, and post-operative Harris hip scores (HHS).
Main Results:
- Mean post-operative HHS was 94.8 at 2.3 years follow-up.
- Mechanical reasons (23) and metallosis (13) were common revision causes.
- Lower HHS noted in revisions for unexplained pain versus mechanical reasons (p=0.029).
Conclusions:
- Revision of SHR can achieve good to excellent results in selected patients.
- Close monitoring and early intervention are recommended for SHR patients.
- A low threshold for revision is advised for component malposition, elevated metal ions, or soft-tissue abnormalities.
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