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  • Title: Similar 30-Day Complications for Septic Knee Arthritis Treated With Arthrotomy or Arthroscopy: An American College of Surgeons National Surgical Quality Improvement Program Analysis.
    Author: Bovonratwet P, Nelson SJ, Bellamkonda K, Ondeck NT, Shultz BN, Medvecky MJ, Grauer JN.
    Journal: Arthroscopy; 2018 Jan; 34(1):213-219. PubMed ID: 28866341.
    Abstract:
    PURPOSE: The purpose of the current study was to use the American College of Surgeons National Surgical Quality Improvement Program (NSQIP) to determine whether there were differences in 30-day perioperative complications between open arthrotomy and arthroscopy for the treatment of septic knees in a large national sample. METHODS: Patients who were diagnosed with a septic knee and underwent open arthrotomy or arthroscopy were identified in the 2005-2014 NSQIP data sets. Patient demographics and perioperative complications were characterized and compared between the 2 procedures. RESULTS: In total, 168 patients undergoing knee arthrotomy and 216 patients undergoing knee arthroscopy for septic knee were identified. There were no statistically significant differences in demographic variables between the 2 groups. On univariate analysis, the rate of minor adverse events (MAEs; 15.48% vs 8.80%, P = .043) was higher in the open arthrotomy treatment group, while the rate of serious adverse events (SAEs; 37.50% vs 26.19%, P = .019) was higher in the arthroscopic surgery treatment group. On multivariate analysis, which controlled for patient characteristics/comorbidities and used the Bonferroni correction for multiple comparisons, there were no statistically significant differences in risk of any adverse events (relative risk [RR] = 0.851; 99% confidence interval [CI], 0.598-1.211; P = .240), MAE (RR = 1.653; 99% CI, 0.818-3.341; P = .066), SAE (RR = 0.706; 99% CI, 0.471-1.058; P = .027), return to the operating room (RR = 0.810; 99% CI, 0.433-1.516; P = .387), or readmission (RR = 1.022; 99% CI, 0.456-2.294; P = .944) between open compared with arthroscopic surgery. CONCLUSIONS: Univariate analysis revealed a lower rate of MAE but a higher rate of SAE in the arthroscopic surgery treatment group. However, on multivariate analysis, similar perioperative complications, rate of return to the operating room, and rate of readmission were found after open and arthroscopic debridement for septic knees. Based on the lack of demonstrated superiority of either of these 2 treatment modalities for this given diagnosis, and the expectation that most differences in perioperative complications for this diagnosis would have declared themselves within the first 30 days, deciding between the studied treatment modalities may be based more on other factors not included in this study. LEVEL OF EVIDENCE: Retrospective comparative study, Level III.
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