Prolonged Operative Time Correlates with Increased Infection Rate After Total Knee Arthroplasty
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 wordsTKA infection SSI risk stratification duration of surgery
- 1.Brandt, C, Hansen, S, Sohr, D, Daschner, F, Ruden, H, Gastmeier, P Apr 2004Finding a method for optimizing risk adjustment when comparing surgical-site infection ratesInfect Control Hosp Epidemiol25313318Google Scholar
- 3.Heisel, C, Schmalzried, TP Aug 2003Incidence of serious complications after total hip replacementJ Bone Jt Surg Am85A16101611Google Scholar
- 5.Mangran, AJ, Horan, TC, Pearlson, ML, Silver, LC, Jarvis, WR 1999Guideline for prevention of surgical site infection 1999Infect Control Hosp Epidemiol20247278Google Scholar
- 7.Peersman, G, Laskin, RS, Davis, J, Peterson, M Nov 2001Infection in total knee replacement: a retrospective review of 6489 total knee replacementsClin Orthop3921523Google Scholar
- 8.Saleh, K, Olson, M, Resig, S, Bershadsky, B, Kuskowski, M, Gioe, T, Robinson, H, Schmidt, R, McElfresh, E 2002Predictors of wound infection in hip and knee joint replacement: results from a 20 year surveillance programJ Orthoptera Res20506515Google Scholar