The McMinn Centre - Excellence in Hips & Knees Hip Resurfacing
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Alternative to Hip Replacement
Welcome to The McMinn Centre, specialising in bone-conserving hip and knee procedures for young & active patients
Research Lectures History
New Materials for Hip Resurfacing
Northern Lights Debate ASR vs BHR
Metal ions and Wear Rates in the BHR
Mini Incision Surgery
Dislocation Rates
Systemic Metal Exposure
What is the BMHR?
Carbides - Myth or Fact
10-Year survival of Double Heat-treated Hip Resurfacings from 1996
Sir Robert Jones Lecture
BOA September 2010
BOA September 2010
The Birmingham Hip Resurfacing and Other Options – The 15 Year Results of the First 1000 BHRs
Design of knee replacement- Can we approach normal knee function? Derek McMinn 2014
 'Metal-on-Polyethyene in Hip Resurfacing' - Derek McMinn, Ghent, May 2014
‘Race for Non MoM Resurfacing - Can we avoid another ASR?’ - Derek McMinn, Ghent May 2014
'Can We Classify Implants By Risk? – Resurfacing' - Derek McMinn, London September 2014
'Movement Patterns of the Knee Relevant to TKR' - Derek McMinn, London Knee Meeting, October 2014
Compromises in Knee Replacement Design - Derek McMinn, London Knee Meeting. October 2014
Hip Resurfacing - Does It Have A Future?
Why are the Functional Results
 of TKR so Poor?
Northern Lights Debate ASR vs BHR
Northern Lights Debate ASR vs BHR
Update on Hip Resurfacing' - Derek McMinn, December 2016
Causes of Failure with Hip Resurfacing
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Dislocation Rate in Large Diameter Metal-on-Metal Hip Replacement – Hena Ziaee 2007

Hena Ziaee discusses the dislocation rates in large diameter metal on metal hip replacements, focussing on study results and the factors that cause dislocation.

Biomedical Scientist Hena Ziaee BSc (Hons) talks about the large diameter metal on metal hip replacement arthroplasty and the rates and causes of dislocation of the implant.

Dislocation rates in conventional hip replacements can vary from three to fifteen per cent. This can depend on patient factors such as age, muscle tone and previous hip surgery. Factors regarding the surgery can also affect dislocation rate, such as the approach, cup positioning and surgeon experience.

In Derek McMinn's series of three thousand Birmingham Hip Resurfacings (BHRs), the dislocation rate is 0.2 per cent, with the mean age of patients being fifty three years old.

The large headed metal-on-metal Total Hip Replacement (THR) was originally developed to treat patients who had sustained a femoral neck fracture or femoral head collapse following hip resurfacing surgery.

In patients with a well fixed cup, it was possible to revise the femoral head with a matching modular head component fixed onto a compatible stem. The success of this device led to it being considered for use as a primary hip replacement procedure.

© The McMinn Centre - Professor Derek McMinn MD FRCS Hip Resurfacing Birmingham UK