Resources
Determining material loss from the femoral stem trunnion in hip arthroplasty PDF 2,845Kb
Journal of Engineering in Medicine. Measurement of the volumetric wear of trunnions in metal-on-metal hip joints.
Bath Biomechanics Symposium 2013 PDF 937Kb
Presentation delivered by Dr. Pauline McCormack entitled “The view from here” patient perspectives on the response to problem metal-on-metal hips.
Blood metal ion testing to identify poorly performing metal-on-metal joints PDF 636Kb
This paper which discusses the use of blood metal ion testing as an effective screening tool to identify poorly performing metal-on-metal bearing surfaces was published in Bone and Joint Research (open-access) in May 2013.
A mile in my shoes "trust" PDF 125Kb
These are visual minutes taken during a focus group at the "A Mile in My Shoes" event held in York, UK in 2012. People who have had a metal-on-metal hip replacement discussed how their experiences have affected their trust in medicine and healthcare and this picture summarises their thoughts.
A mile in my shoes "prevention" PDF 414Kb
These are visual minutes taken during a focus group at the "A Mile in My Shoes" event held in York, UK in 2012. People who have had a metal-on-metal hip replacement discussed how they thought future joint failures could be prevented and this picture summarises their thoughts.
A mile in my shoes "responsibility" PDF 147Kb
These are visual minutes taken during a focus group a the "A Mile in My Shoes" event held in York, UK in 2012. People who have had a metal-on-metal hip replacement discussed who/what they thought was responsible for recent joint failures and this picture summarises their thoughts.
A mile in my shoes opening session PDF 344Kb
These are visual minutes from the patient workshop "A Mile in My Shoes" held in York, UK in 2012. This picture represents the opening sessions of the workshop and covers the background to metal-on-metal hip implants as well as some of the general views from patients and the questions they are asking.
Written evidence on medical device regulation PDF 1,094Kb
This is all the written evidence submitted to the UK Commons Science and Technology Select Committee inquiry on medical device regulation. It contains submissions from two patients with metal on metal hip implants.
Clinical guidelines for patients with metal-on-metal hip replacements PDF 94Kb
The appendix at the end of this document gives management recommendations for patients with metal-on-metal hip replacement implants. These give advice on the frequency of tests for different classes of metal-on-metal hips and patients may find this useful when talking to their doctor.
Lessons learnt: preventing future artificial joint failures PDF 75Kb
This is a summary of the multi-disciplinary event we held in April in London.
DePuy Orthopaedics ASR Hip System Recall notice PDF 93Kb
Letter from DePuy Orthopaedics announcing ASR Hip System recall.
Precaution, governance and the failure of medical implants: the ASR(TM) hip PDF 1,127Kb
This article argues that there has been a systemic failure of the governance system entrusted with the safety of patients fitted with medical implants. Commercial considerations of medical implants and the status quo of medical implant governance have been given priority over patient safety despite the availability of significant failure data in an example of uncertainty about what constitutes appropriate precautionary action. (Life Sciences Society and Policy.)
When technology fails patients PDF 530Kb
These are some of the initial findings from our focus groups with people with metal-on-metal hip implants, as presented at the British Sociological Association Medical Sociology conference.
Australian Senate Report on Medical Device Approval in Australia PDF 687Kb
The Australian Senate report on their findings on regulations governing medical device approval in Australia.
DePuy Orthopaedic ASR Field Safety Notice PDF 118Kb
Field Safety Notice from March 2010 entitled 'DePuy ASR Articular Surface Replacement and ASR XL Monoblock Metal-on-Metal System', giving advice mainly on positioning of the device.
Submission to FDA Review PDF 502Kb
This is our submission to the review of metal on metal hip implants being carried out by the US regulator, the FDA 's Orthpaedic and Rehabilitation Devices Panel.
Introduction to patient panel PDF 495Kb
Here's the introduction to the patient panel session from our London event "Lesson Learnt: preventing future artificial joint failures", which highlights the importance of working directly with patients.
Medical Implant Inquiry by Commons Select Committee PDF 317Kb
This is our submission to the UK House of Commons Science & Technology Committee's examination of the regulation of medical implants.
MHRA updates advice for metal-on-metal hip replacements PDF 56Kb
The Medicines and Healthcare products Regulatory Agency (MHRA) issued updated advice on 28 February to surgeons that patients with a particular type of metal-on-metal hip replacement should be monitored annually for the life of the hip replacement. This updates previous advice from April 2010 that patients with this type of hip replacement need only be monitored for a minimum of five years after their operation.
ASR hip joint replacement update January 2012 PDF 1,888Kb
This presentation by Tom Joyce, gives an update on issues with ASR artificial hip joint replacements. It was presented at the patient meeting 'A mile in my shoes', in York, UK on 14 January 2012. It follows on from the presentation given in October 2011.
ASR hip joint replacement PDF 4,679Kb
This presentation by Tom Joyce, gives detailed background on the history of the ASR artificial hip joint replacement, as well as the results from engineering analysis of explants. It was presented at a meeting of the 'Altogether Hip' patient group in York, UK in October 2011.
Locking the stable door PDF 148Kb
This opinion piece calls for more systematic testing of artificial joints and transparency in presenting test results. The subject is finger joint prostheses but the ideas resonate in current debates on metal-on-metal hips. It was written in 2008 by Tom Joyce and won the Pulvertaft Prize, which is awarded by the British Society for Surgery of the Hand (BSSH), for work which best contributes to the knowledge and practice of surgery of the hand.
Analysis of failed ex vivo 36mm metal on metal pinnacle hips PDF 1,517Kb
This poster, which discusses some emerging problems with wear in 36mm metal on metal pinnacle hip replacements, won a prize at the International Society for Technology in Arthroplasty (ISTA) annual conference in Bruges, Belgium, September 2011.
When technology fails patients PDF 301Kb
A poster presentation 'When technology fails patients: nanoparticles as a result of medical device failure', which talks about the work we hope to do with patients. It was presented at the annual conference of the Society for the Study of Nanoscience and Emerging Technologies (S.NET), in Tempe, USA, November 2011.