An article has been published in The Journal of Bone and Joint Surgery -British Volume surveying patients who had their metal-on-metal resurfacing procedures revised. A first of its kind, the paper looks to explore possible reasons for failure of these resurfacings including malpositioning of the components.
Although the sample size was small, over 60% of patients studied suffered from malpositioning and this was also associated with 'metallosis and a high level of serum ions'. Metallosis is a complication of joint replacement caused by abrasion of metal components. Typically, it involves the accumulation of metal ions in the areas surrounding the joint and can cause the formation of giant cells and fibrosis.
The authors conclusion was that in the group studied 'malpositioning of the acetabular component was the main cause of revision' and that therefore 'accurate positioning of the implant is of paramount importance to ensure a low wear rate of metal-on-metal bearings'. This will impact procedure and hopefully result in less revisions in the future.
Read the research article.
- The Journal of Bone and Joint Surgery - British Volume is a world leading orthopaedics journal with an Impact Factor of 1.868
- JBJS-Br publishes twelve issues a year of high-quality, peer-reviewed research, overseen by an international editorial board led by Editor James Scott
- The Journal was first published in 1948 by The British Editorial Society of Bone and Joint Surgery, a registered charity (No. 209299), with the object of the advancement and improvement of education in orthopaedic surgery and allied branches of surgery and the diffusion of knowledge of new and improved methods of teaching and practicing orthopaedic surgery in all its branches
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The Journal of Bone and Joint Surgery - British Volume
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