Minimal Incision Surgery as a Risk Factor for Early Failure of Total Knee Arthroplasty

Robert L. Barrack, C. Lowry Barnes, R. Stephen J. Burnett, Derek Miller, John C. Clohisy, William J. Maloney

Research output: Contribution to journalArticlepeer-review

42 Scopus citations


A consecutive series of revision total knee arthroplasty (TKA) performed at 3 centers by 5 surgeons for a 3-year period was reviewed. Revisions performed for infection and rerevisions were excluded. Review of clinical and radiographic data determined incision type, sex, age, time to revision, and primary diagnosis at time of revision. Two-hundred thirty-seven first-time revision TKAs were performed, of which 44 (18.6%) had been a minimal incision surgery (MIS) primary TKA and 193 (81.4%) had been a standard primary TKA. Patients with MIS were younger (62.1 vs 66.2 years, P = .02). Most striking was the difference in time to revision, which was significantly shorter for the MIS group (14.8 vs 80 months, P < .001). Minimal incision surgery TKA accounted for a substantial percentage of revision TKA in recent years at these centers. The high prevalence of MIS failures occurring within 24 months is disturbing and warrants further investigation.

Original languageEnglish
Pages (from-to)489-498
Number of pages10
JournalJournal of Arthroplasty
Issue number4
StatePublished - Jun 2009


  • MIS
  • early failure
  • revision
  • total knee arthroplasty


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