[Risk of postoperative morbidity and mortality after conversion of osteosynthesis in patients with polytrauma].

Objective: To reduce the incidence of postoperative complications and mortality after conversion of external fixation device into various types of submerged osteosynthesis in patients with polytrauma.

Material and methods: A retrospective and prospective analysis of treatment outcomes in 351 patients with polytrauma was divided into 2 stages. At the first stage, we analyzed significant predictors of complications after conversion of osteosynthesis in the 1^st group (retrospective analysis). At the second stage, we estimated the efficacy of the developed scale for assessing the risk of complications after conversion of osteosynthesis in a prospective group of patients.

Results: According to the complication risk assessment scale for conversion of osteosynthesis, analysis of time to surgical treatment depending on objective criteria in patients with polytrauma can significantly reduce the incidence of postoperative complications by 14% and mortality rate by 1.7%.

Conclusion: The complication risk assessment scale after conversion of osteosynthesis will personalize the approach to timing and methods of conversion. This measure will eliminate the «second hit» in damage control orthopedics and improve the results of treatment.