HSS Journal

, Volume 2, Issue 1, pp 70–72 | Cite as

Prolonged Operative Time Correlates with Increased Infection Rate After Total Knee Arthroplasty

  • G. Peersman
  • R. Laskin
  • J. Davis
  • M. G. E. Peterson
  • T. Richart
Research Article


Risk stratification has proven to be a useful tool in surgical site infection prevention. The duration of the surgical procedure has been recommended for use in surgical site infection (SSI) risk stratification (Infect Control Hosp Epidemiol 20:247–248, 1999). A retrospective analysis of 6489 patients who underwent total knee replacement (TKR) between 1993 and 1999 assessed the association between the duration of the surgical procedure and the risk of postoperative infection. One hundred thirteen infected patients were matched with 236 controls, and nominal variables were statistically processed. Patients without infections (n = 236) had surgery durations of 94 ± 28 min, and patients with infection (n = 104) had durations of 127 ± 45 min (p < 0.001). Operation time has positive correlations with weight (r = 0.3, p < 0.001), body mass index (r = 0.3, p < 0.001), and the total number of comorbidities (r = 0.2, p < 0.001; n = 340). The results confirm that the duration of the surgical procedure can be used as a risk predictor for SSI in TKR.

Key words

TKA infection SSI risk stratification duration of surgery 


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Copyright information

© Hospital for Special Surgery 2006

Authors and Affiliations

  • G. Peersman
    • 1
  • R. Laskin
    • 2
  • J. Davis
    • 2
  • M. G. E. Peterson
    • 2
  • T. Richart
    • 1
  1. 1.ACZA Campus StuivenbergAntwerpBelgium
  2. 2.The Hospital for Special SurgeryWeill Medical School of Cornell UniversityNew YorkUSA

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