Analysis of Complications and Risk Factors after Hip Replacement
LI Jun,FENG Ting,CHEN Yun-hui
Department of Orthopedics, Guangzhou Panyu Central Hospital, Guangzhou 511400, China
Abstract:
Objective To explore the risk factors that affect the complications after hip replacement.Methods The clinical data of 114 patients who underwent hip arthroplasty in our hospital from February 2016 to July 2018 were collected, and the patients were divided into complication group and non-complication group according to the postoperative clinical outcome. The correlation between the general clinical data of the two groups of patients and postoperative complications were compared. Multivariate stepwise logisitic regression analysiswere used to screen the factors affecting the clinical outcome of patients, and the independent risk factors screened out were constructed and verified by a nomogram prediction model. Results Multivariate stepwise logisitic regression analysis showed that age, diabetes, body mass index (BMI), operation time, hospital stay, improper postoperative handling, excessive blood transfusion, postoperative C-reaction protein (CRP) are independent risk factors for complications after hip replacement (P <0.05). After repeated sampling by Bootstrap method for internal verification and external verification, the C-indexes were 0.817 and 0.795 respectively and the discrimination was good. Conclusion Age, diabetes, BMI, operating time, length of stay, improper postoperative handling, excessive blood transfusion and postoperative CRP factors are independent risk factors for complications after hip replacement. Based on these, the nomogram model for predicting the risk of postoperative complications has good discrimination and accuracy.These factors should be considered in clinical work. These factors should also be prevented and controlled to reduce the incidence of complications after hip replacement.
