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High Re-Operation Rates Using Conserve Metal-On-Metal Total Hip Articulations
S L Mogensen1, T Jakobsen1, H Christoffersen2
1Department of Orthopaedic Surgery, The Regional Hospital Viborg, Denmark.
The Open Orthopaedics Journal
|April 22, 2016
Summary
High re-operation rates were observed in metal-on-metal total hip arthroplasty (MOM THA) implants, raising concerns about their safety and leading to the discontinuation of their use in two orthopaedic departments.
Area of Science:
- Orthopaedic surgery
- Biomaterials science
Background:
- Metal-on-metal total hip arthroplasty (MOM THA) has faced scrutiny due to adverse reactions and high failure rates.
- Evaluating the performance of specific MOM THA devices is crucial for patient safety.
Purpose of the Study:
- To retrospectively evaluate the clinical outcomes of CONSERVE® MOM THA implants.
- To assess re-operation rates and adverse reactions in patients receiving MOM THA.
Main Methods:
- A retrospective review of 108 CONSERVE® MOM THA implants in 92 patients.
- Analysis of patient journals for re-operations and adverse reactions at a mean follow-up of 53 months.
Main Results:
- 18.4% of hips (20 out of 108) required re-operation.
- Four pseudotumors were diagnosed, but no direct link to re-operations was established.
Conclusions:
- The high re-operation rate associated with CONSERVE® MOM THA is a significant concern.
- These findings led to the cessation of CONSERVE® MOM THA implantation at the participating centers.
