[Predictors of a knee-joint preserving during high amputation of the lower extremity in a purulent-necrotic complications of obliterating angiopathy].

The causes, influencing possibility of a knee joint preservation, when performing tne lower extremity high amputation, were analyzed in 65 patients while occurrence of purulent-necrotic complications of obliterating angiopathy. In accordance to results of logistic regression the value of comorbidity index 4 and more have appeared significant as a predictor of impossibility to preserve a knee joint. In its bigger or lesser values a success or failure of transtibial amputation is possible.