Hip resurfacing: a large, US single-surgeon series.

Area of Science:

• Orthopedic Surgery
• Biomaterials Science

Background:

• Metal-on-metal hip resurfacing emerged as an alternative to total hip arthroplasty for younger, active individuals.
• Critical factors for success include device design, accurate implantation, and patient selection.

Purpose of the Study:

• To evaluate the safety and effectiveness of the Birmingham Hip Resurfacing device in a large, single-surgeon series.
• To report early to mid-term outcomes of hip resurfacing in the United States.

Main Methods:

• Prospective, observational registry of 1333 Birmingham Hip Resurfacing cases.
• Follow-up for a mean of 4.3 years (range: 2 to 5.7 years).
• Data collected on patient demographics, complications, and survivorship.

Main Results:

• Overall survivorship was 99.2% at up to 5.7 years.
• Low complication rates: 0.15% femoral neck fractures, 0.08% socket loosening, 0.23% deep infections, 0.23% metallosis.
• No dislocations or destructive pseudotumors reported.
• 100% aseptic survivorship in males under 50 years old.

Conclusions:

• The Birmingham Hip Resurfacing device demonstrates favorable early to mid-term safety and effectiveness.
• High survivorship rates support its use in carefully selected patients.
• This series represents a significant contribution to understanding hip resurfacing outcomes in the US.