Tuesday, August 16, 2011

Review of the 2010 Australian Joint Registry Results for hips having higher than anticipated revision rates(3 of x) : The Depuy ASR

This report appendix provides additional data from all conventional hip revisions vs those which are Depuy ASR revisions.

1) Data total for this is review:
  • total conventional hip revisions: 4,867
  • Total ASRs revised:  210
2)  Yearly cumulative percent revision of primary total conventional hips vs ASR



1 year
3 years
5 years
7 years
9 years
 Depuy ASR
1.8%
5.9%
9.3%


Total conventional hip revisions
1.5%
2.6%
3.4%
4.3%
5.3%


3.  Type of revision performed for total conventional hip replacement vs ASR- this analysis identifies the components used in the revision of the hip replacement.  The question:  Is there one or more components which are bring replaced that differ from the normal revision process?


Revision type
Number ASR
% ASR
Number for other hip replacements
% for other hip replacement
Femoral only (femur stem)
39
18.6%
1449
30%
Acetabular only (cup)
93
44%
1172
24%
both
38
18%
589
12%
Totals

80%

66%

 
Tomorrow I will look at the reason for the revisions and the number of revisions for the Depuy ASR vs conventional.

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