Long-term Outcomes of Birmingham Hip Resurfacing
Author Information
Author(s): Treacy RB, McBryde CW, Shears E, Pynsent PB
Primary Institution: McMaster University
Hypothesis
To determine the survival and the radiological and functional outcome of a series of consecutive Birmingham hip resurfacing procedures after a minimum follow-up of 10 years.
Conclusion
The Birmingham hip resurfacing procedure can be considered an acceptable alternative to total hip replacement for male patients, but more follow-up is needed for female patients.
Supporting Evidence
- The survival rate with death as the endpoint was 94.9% at 10 years.
- Risk of revision increased 1.14 times per year with every 4 mm decrease in femoral component size.
- Male patients had a Kaplan-Meier survival rate of 98.0%.
Takeaway
This study followed patients who had hip resurfacing surgery for 10 years and found that it works well for men, but we need to learn more about how it affects women.
Methodology
Patients were followed up at a minimum of 10 years post hip resurfacing surgery, with standardized assessments and radiographs taken.
Potential Biases
The study may have bias due to the small sample size, particularly regarding female patients.
Limitations
The sample size of 130 patients is inadequate to make definite conclusions about risks for females and patients with smaller femoral head components.
Participant Demographics
Patients included both male and female, with a focus on male patients for the outcomes.
Statistical Information
P-Value
P=.0006 and P=.0002
Confidence Interval
95% CI: 91.1 to 98.6
Statistical Significance
p<0.05
Digital Object Identifier (DOI)
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