Analysis of Related Factors of Postoperative Fracture Nonunion in Elderly Patients with Distal Femoral Fracture Internal Fixation
Objective:To analyze the related factors of postoperative fracture nonunion in elderly patients with distal femoral fracture internal fixation.Method:A total of 102 elderly patients with internal fixation of distal femoral fracture admitted to Wuhan Xinzhou District Specialty Hospital of Department of Orthopedics and Traumatology of Traditional Chinese from February 2019 to June 2022 were selected as the study objects.All patients underwent conventional locking plate internal fixation treatment.The general data of all patients were investigated and bone mineral density and 25 hydroxyvitamin D3 levels were determined.All patients were followed up for 1 year.Fracture healing condition of all patients was analyzed.The general data,bone mineral density and 25 hydroxyvitamin D3 were compared between patients with fracture healing and those with fracture nonunion.The influencing factors of postoperative fracture nonunion in elderly patients with distal femoral fracture internal fixation was analyzed.Result:Of the 102 patients,79 were fracture union and 23 were fracture nonunion.The proportion of delayed weight bearing,abnormal bone mass and abnormal 25 hydroxyvitamin D3 in patients with nonunion were higher than those with union,and the differences were statistically significant(P<0.05).Delayed weight bearing,abnormal bone mass and abnormal 25 hydroxyvitamin D3 were the factors that induced fracture nonunion after internal fixation of distal femoral fracture in elderly patients(P<0.05).Conclusion:Factors affecting postoperative fracture nonunion in elderly patients with internal fixation of distal femur fracture include delayed weight bearing,bone mineral density,and 25 hydroxyvitamin D3.Patients with such factors should be closely monitored after surgery to prevent fracture nonunion.