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Chinese Journal of Experimental and Clinical Infectious Diseases(Electronic Edition) ›› 2020, Vol. 14 ›› Issue (02): 123-127. doi: 10.3877/cma.j.issn.1674-1358.2020.02.007

Special Issue:

• Research Article • Previous Articles     Next Articles

Correlation between the period and dose of glucocorticoid injection and postoperative infection after shoulder arthroscopy

Zhensheng Lu1,(), Shouqiu Ye1, Ting Yang1, Xuli Huang1   

  1. 1. Orthopedics Department of Puning People’s Hospital, 515300 Puning, China
  • Received:2019-07-17 Online:2020-04-15 Published:2020-04-15
  • Contact: Zhensheng Lu
  • About author:
    Corresponding author: Lu Zhensheng, Email:

Abstract:

Objective

To investigate the effect of glucocorticoid injection period and dose on postoperative infection after shoulder arthroscopy, and to provide new ideas for prevention and treatment of complications after shoulder arthroscopy.

Methods

Total of 94 patients who were treated in Puning People’s Hospital and underwent shoulder arthroscopic surgery from February 2014 to March 2018 were selected, according to with or without postoperative infection, the patients were divided into infected group (21 cases) and uninfected group (73 cases), and the incidence of infection and distribution of pathogenic bacteria were analyzed, respectively. The correlation between age, gender, hospitalization days, operation time, glucocorticoid use and rate of postoperative infection were analyzed, respectively. The time and dose of glucocorticoid therapy were recorded. The influences of time and dose of glucocorticoid injection on infection after shoulder arthroscopy were predicted by ROC curve.

Results

There were 21 patients with infection after shoulder arthroscopy, and the infection rate was 22.3%, among which, 8 strains (38.0%) of Gram-negative bacteria, 12 strains (57.2%) of Gram-positive bacteria, and 1 strain (4.8%) of fungi were isolated. Compared with uninfected group, the age, hospitalization days, operation time, diabetes mellitus, antimicrobial use time, daily dose and time difference of glucocorticoid treatment were significantly different in the infected group (all P < 0.05). Multivariate Logistic regression analysis showed that operation time (OR = 1.238, P = 0.026), daily average dose of glucocorticoid (OR = 1.485, P = 0.019) and using time (OR = 0.968, P = 0.018) were all independent risk factors for postoperative infection. The area under ROC curve of glucocorticoid cumulative treatment time after shoulder arthroscopy was 0.805, 95% confidence interval (CI) was 0.685-0.924, and cut-off value was 5.16. The area under ROC curve of daily average dose of glucocorticoid after shoulder arthroscopy was 0.909, 95%CI was 0.830-0.988, and cut-off value was 12.67, all with significant differences (all P < 0.001).

Conclusions

Gram-positive bacteria were the main pathogen after shoulder arthroscopy. Long-term and high-dose glucocorticoid injection may increase the risk of infection after shoulder arthroscopy. Therefore, reasonable and efficient use of glucocorticoids after shoulder arthroscopy was important to avoid infection.

Key words: Shoulder arthroscopy, Glucocorticoid, Infection

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