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A simple scoring system for predicting early major complications in spine surgery: the cumulative effect of age and size of surgery

Escore simples para predizer complicações precoces graves em cirurgia de coluna: o efeito cumulativo da idade e tamanho da cirurgia

ABSTRACT

Objective

To analyze the cumulative effect of risk factors associated with early major complications in postoperative spine surgery.

Methods

Retrospective analysis of 583 surgically-treated patients. Early “major” complications were defined as those that may lead to permanent detrimental effects or require further significant intervention. A balanced risk score was built using multiple logistic regression.

Results

Ninety-two early major complications occurred in 76 patients (13%). Age > 60 years and surgery of three or more levels proved to be significant independent risk factors in the multivariate analysis. The balanced scoring system was defined as: 0 points (no risk factor), 2 points (1 factor) or 4 points (2 factors). The incidence of early major complications in each category was 7% (0 points), 15% (2 points) and 29% (4 points) respectively.

Conclusions

This balanced scoring system, based on two risk factors, represents an important tool for both surgical indication and for patient counseling before surgery.

spine, surgery; surgical wound invection; multivariate analysis

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