Revision rates after primary hip and knee replacement in England between 2003 and 2006

Area of Science:

• Orthopedic Surgery
• Biomedical Engineering
• Public Health

Background:

• Hip and knee replacements are common worldwide.
• Hip resurfacing and unicondylar knee replacement are increasingly used.
• Evidence on the performance of these specific joint replacement types is limited.

Purpose of the Study:

• To investigate the 3-year revision rates of hip and knee replacement prostheses.
• To compare the performance of different types of hip and knee prostheses.
• To provide evidence-based recommendations for joint replacement strategies.

Main Methods:

• Linked data from the National Joint Registry and Hospital Episode Statistics in England.
• Included 76,576 hip and 80,697 knee replacement patients (2003-2006).
• Identified revisions within 3 years of primary joint replacement.

Main Results:

• Hip resurfacing had higher 3-year revision rates (2.6%), particularly in women.
• Unicondylar knee replacement showed higher 3-year revision rates (2.8%).
• Revision rates for hip and knee replacements decreased with patient age.

Conclusions:

• Approximately 1.3% of patients required prosthesis revision within 3 years.
• Consideration for hip resurfacing should prioritize male patients.
• Unicondylar knee replacement may be best suited for elderly patients.