Analysis of Factors Affecting Elbow Joint Function Recovery in Patients with Ulna Coronoid Process Fracture after Operation and Construction of Prediction Model
Objective:To investigate the factors affecting elbow joint function recovery in patients with ulna coronoid process fracture after operation,and to establish a predictive model.Methods:208 patients with ulnar coronoid process fracture admitted of our hospital from June 2019 to June 2022 were retrospectively selected.All patients were treated with open reduction and internal fixation,and were followed up for 12 months.Patients were divided into poor recovery group(48 cases)and good recovery group(160 cases)according to Mayo elbow performance score(MEPS)at last follow-up.The clinical data were collected,and the factors affecting the functional recovery of elbow joint in patients with ulnar coro-noid process fracture were analyzed by multi-factor Logistic regression,and the prediction model was built based on Logis-tic regression.Receiver operating characteristic(ROC)curve and H-L test the efficiency of the prediction model.Results:Terror triad and O'Driscoll type Ⅰ were the risk factors for elbow function recovery(P<0.05).Posterior approach and in-ternal fixation with supporting plate were the protective factors(P<0.05).The area under the curve predicted by the pre-diction model was 0.808(95%CI=0.748-0.859,P<0.05),and the sensitivity and specificity were 81.25%and 85.00%,respectively.The H-L test predicted that the prediction model had a good agreement(P>0.05).Conclusion:Terror triad,O'Driscoll classification,surgical approach and internal fixation are related to elbow joint function recovery in patients with ulnar coronoid process fracture.Based on this,a prediction model can better predict the risk of poor elbow joint function recovery.
ulnar coronal process fractureelbow joint func-tionrisk factorsprediction model