How Oxford Hip and Knee Scores Relate to Early Joint Replacement in New Zealand

For every one-unit decrease in the Oxford score, the risk of revision within two years increased by 9.7% for total hip replacement.

• Logistic regression analysis indicated a 9.9% increase in revision risk for total knee replacement and a 12.0% increase for unicompartmental knee replacement with each one-unit decrease in the Oxford score.
• Monitoring the lowest 22% of Oxford scores captured 70% of TKR revisions and 67% of THR and UKR revisions within two years.
• Scores below 27 (poor) were linked to a 7.6% revision risk for THR, 7.0% for TKR, and 24.3% for UKR, compared to 0.7%, 0.7%, and 1.8% for scores above 34 (good or excellent).
• The results suggest that Oxford hip and knee scores at six months may be useful predictors of early revision after THR and TKR.

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