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Risk Factors of Klemencsics et al for Surgical Site Infection (SSI) After Elective Routine Degenerative Lumbar Spine Surgery

Description

Klemencsics et al reported risk factors for surgical site infection following elective lumbar spine surgery. This can help to identify a patient who may benefit from more aggressive management to prevent infection. The authors are from Buda Health Center and Semmelweis University in Budpest.


Patient selection: elective routine degenerative lumbar spine surgery

 

Risk factors for surgical site infection:

(1) age

(2) body mass index (BMI)

(3) diabetes, insulin-dependent

(4) ischemic heart disease

(5) cardiac arrhythmia

(6) chronic liver disease

(7) systemic autoimmune disease

 

Parameter

Finding

Odds Ratio

age

<= 54 years

1

 

> 54 years

1.64

BMI

<= 28 kg per sq m

1

 

> 28 kg per sq m

1.98

arrhythmia

no

1

 

yes

3.12

chronic liver disease

no

1

 

yes

14.2

insulin-dependent diabetes

no

1

 

yes

2.99

ischemic heart disease

no

1

 

yes

2.19

systemic autoimmune

no

1

 

yes

7.93

 

where:

• The beta-coefficients are given in Table 3 but not the constant.

 

cumulative odds ratio for surgical site infection =

= PRODUCT(odds ratios for the risk factors)

 

Performance:

• The area under the ROC curve is 0.71.


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