Birmingham hip resurfacing arthroplasty 2008
Click here to visit original link
A SERIES OF 110 CONSECUTIVE HIPS WITH A MINIMUM FIVE-YEAR CLINICAL AND RADIOLOGICAL FOLLOW-UP
G. N. A. Heilpern, MRCS,
Orthopaedic Specialist Registrar1; N. N.
Shah, FRCS, Senior Clinical Fellow2; and
M. J. F. Fordyce, FRCS, Consultant Orthopaedic
Surgeon3
1 King’s
College Hospital, Denmark Hill, London SE5 9RS, UK.
2 Great Ormond Street Hospital, Great
Ormond Street, London, WC1N 3JH, UK.
3 Kent and Sussex Hospital, Mount
Ephraim, Royal Tunbridge Wells, Kent TN4 8AT, UK.
We report the outcome at
a minimum of five years of 110 consecutive
metal-on-metal Birmingham
Hip Resurfacing arthroplasties in 98 patients. The
procedures were performed between October 1999
and June 2002 by one surgeon. All patients
were followed up clinically and
radiologically. The mean follow-up was 71 months
(60 to 93). Revision of either component was
defined as failure.
The mean Harris Hip score at follow-up was 96.4 (53 to 100).
The mean Oxford hip
score was 41.9 (16 to 57) pre-operatively
and 15.4 (12 to 49) post-operatively (p < 0.001).
The mean University of California Los
Angeles activity score was 3.91 (1 to 10)
pre-operatively and 7.5 (4 to 10) post-operatively
(p < 0.001).
There were four failures giving a
survival at five years of 96.3% (95%
confidence interval 92.8 to 99.8). When applying
a new method to estimate narrowing of the
femoral neck we identified a 10% thinning
of the femoral neck in 16
hips
(14.5%), but the relevance of this
finding to the long-term outcome remains unclear.
These good medium-term results from
an independent centre confirm the
original data from Birmingham.
