Abstract
The release of indicators and mediators of the posttraumatic inflammatory response following spine surgery was measured in patients with multiple injuries. Eight of a group of 113 patients (mean injury severity score 36) who underwent delayed operative stabilization of vertebral fractures (> 24 h after trauma) were studied. The following significant postoperative changes of blood levels (median values, Wilcoxon signed-rank test) compared with the preoperative starting point were found: polymorphonuclear granulocyte elastase rose from 220 to 337 ng/ml, cathepsin B from 84.5 to 135.5 mU/l, C-reactive protein from 9.1 to 11.6 mg/dl, lactate from 9.6 to 15.2 mg/dl and neopterin from 6.9 to 15.2 nmol/l, while antithrombin III fell from 107.5% to 84%, platelet count from 102 to 88 x 10(9)/l and pO2/FiO2-ratio from 361 to 260. The alterations in the blood levels of these parameters following spine surgery showed a pattern similar, albeit of lesser magnitude, to that which can be observed after severe accidental trauma. We conclude that the additional activation of the inflammatory response following surgery for vertebral lesions should be taken into account when planning these operations in patients with multiple injuries.
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