BHR (Birmingham Hip Resurfacing) – 10 Years of Data
BHR 10 years of Data
The first BHR was implanted in July 1997 and it is unchanged until present day.
|
96.1% survivorship overall |
|
McMinn 99.8% at 8 years |
| Treacy 99% at minimum 5 years |
| Shimmin et al 99.14% at 3 years |
|
Oswestry Cohort, FDA approval Data 2006 98.7% at 4 years |
U.S. Statistics as of 10/2007
| There have been 1000 surgeons trained to date |
|
Only about 50% of those surgeons actually do the procedure (they are all however listed on the Smith &Nephew website |
| There have been 7000 BHR’s installed in the U.S. to date |
Oswestry Registry 5000
BHR’s to date 2007
| 99.8% survivorship at 3.3 years |
| 95.7 % at 8 years |
| 99.5% of these patients were happy at 5 years. |
| 3227 were male, 1602 female, there were 50 revisions, 14 were fractures, 14 collapsed neck |
|
95.7% satisfied at 8 years |
| The 1.5% neck fracture – due to learning curve. |
Australian National Joint Registry
| Resurfacing hip systems requiring revisions 1999 – 2007 | |||||
| BHR device implantation in Australia started in 1999 | |||||
| Competitors devices started in 2000/2001 | |||||
|
Resurfacing Product |
Number revised |
Total Number |
% Revised |
Observed Component years |
Revisions per 100 observed component years |
|
ASR |
31 |
753 |
4.1 |
1042 |
3 |
|
BHR |
166 |
6773 |
2.5 |
19585 |
0.8 |
|
Conserve Plus |
4 |
59 |
6.8 |
134 |
3 |
|
Cormet 2000 |
8 |
95 |
8.4 |
288 |
2.8 |
|
Durom |
25 |
564 |
4.4 |
927 |
2.7 |
|
Recap |
2 |
50 |
4 |
81 |
2.5 |
These numbers were all from the Australian Hip Registry which was established in 1999. A total of 140,018 patients registered with 160349 procedures out of which 8361 were resurfacings.
The BHR was started in 1999 and the competitors started in 2000 and 2001. This is the latest data published in that registry. I am sure there are more details in the registry itself, but this is all the data, well minus 1% of resurfacing done in Australia. I think it is somewhat a good overall feel for the results considering it is gathered over almost the same amount of time, from all of Australia in all patients given the procedure which would cover all doctors, etc.