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Outcome of revision arthroplasty for failed metal-on-metal total hip replacements; is there a relation with metal ions?

Abstract

Purpose

We aimed to assess the early outcome following revision arthroplasty for failed metal-on-metal (MoM) total hip replacements (THR) due to adverse reaction to metal debris (ARMD).

Methods

We reviewed 106 consecutive revision arthroplasties. Case notes and radiological investigations were reviewed to assess the complications. Oxford Hip Score (OHS) and Euroqol (EQ-5D-3L) scores were used to assess the functional outcome and improvement of quality of life.

Results

At a mean follow-up of 20 months (12-48 months), the mean OHS was 28.7. Pain improved in 61% patients. A majority of patients were in level 2 for all the EQ-5D-3L dimensions. The overall complication rate was 16%. Survivorship free from further revision for any cause was 94.3% at 48 months. There was no correlation between pre-revision blood metal ions and the final outcome.

Conclusions

Revision surgery for failed MoM hip replacement due to ARMD is associated with a relatively higher rate of complications and risk of chronic pain. There is poor correlation between serum metal ions and development of ARMD and outcome following revision surgery.

Hip Int 2017; 27(3): 235 - 240

Article Type: ORIGINAL RESEARCH ARTICLE

DOI:10.5301/hipint.5000460

Authors

Hafiz J. Iqbal, Waheeb A.K. Al-Azzani, Esther Jackson-Taylor, Elizabeth Clatworthy, Alun John

Article History

Disclosures

Financial support: None.
Conflict of interest: None.

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Authors

Affiliations

  • University Hospital of Wales, Cardiff - UK

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