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. 1999 Jun;23(2):100–103. doi: 10.1007/s002640050317

Survivorship analysis of the ”Performance” total knee replacement – 7-year follow-up

J D F Calder 1, N Ashwood 1, J P Hollingdale 1
PMCID: PMC3619793  PMID: 10422025

Abstract 

We present the results of a prospective study in which 32 ”Performance” total knee replacements were implanted with a mean follow-up period of 6.5 years. Survival analysis showed 89% survival at 7 years. Of those knees that survived to follow-up 80% were pain free or had mild pain when climbing stairs and only 1 knee was unable to flex beyond 100°. Eighty-six percent of patients were able to walk unlimited distances and all knees had a statistically significant improvement in the knee evaluation scores at follow-up. There was no evidence of loosening or migration in the surviving knees.

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Footnotes

Accepted: 7 March 1999


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