Logistic Regression Analysis of Risk Factors and Improvement of Clinical Treatment of Traumatic Arthritis after Total Hip Arthroplasty (THA) in the Treatment of Acetabular Fractures

Abstract

Objective. Logistic regression was adopted to analyze the risk factors of traumatic arthritis after total hip arthroplasty (THA) in the treatment of acetabular fractures, and the clinical treatment was enhanced. Methods. A total of 200 patients with acetabular fractures treated in our hospital from February 2019 to April 2021 were enrolled for THA. According to the occurrence of traumatic arthritis after operation, the patients were divided into control group and study group. The control group was patients without traumatic arthritis ( $n=165$ ), and the study group was patients with traumatic arthritis after operation ( $n=35$ ). The general data were analyzed, the risk factors of traumatic arthritis after THA for acetabular fractures were analyzed by logistic regression, and the clinical treatment methods were promoted. Results. First of all, there exhibited no significant difference in the general data such as sex, age, medical history, and operation site ( $P>0.05$ ). There were significant differences in the general data of whether the patients had a job, rehabilitation exercise, and osteoarthritis before operation ( $P<0.05$ ). Secondly, we compared the curative effects between two groups. The effective rate in the study group was higher compared to the control group ( $P<0.05$ ). After treatment, the Harris hip function score of the study group at discharge, 1 month, 3 months, and 6 months after discharge was higher compared to that of the control group ( $P<0.05$ ). The incidence of postoperative complications in the study group was significantly higher compared to that in the control group ( $P<0.05$ ). The presence of osteoarthritis, curative effect, poor reduction of fracture, injury of articular cartilage, entry of internal fixation into the joint, avascular necrosis of the femoral head, and infection before operation were significantly correlated with traumatic arthritis after THA in the treatment of acetabular fractures ( $P<0.05$ ). Logistic regression analysis indicated that poor reduction, curative effect, articular cartilage injury, entry of internal fixation into the joint, avascular necrosis of the femoral head, infection, and preoperative osteoarthritis were the risk factors of traumatic arthritis after THA in the treatment of acetabular fractures ( $P<0.05$ ). Conclusion. Poor fracture reduction, curative effect, articular cartilage injury, internal fixation into the joint, avascular necrosis of the femoral head, infection, and the presence of osteoarthritis before operation are the risk factors of traumatic arthritis after THA in the treatment of acetabular fractures. When performing THA for patients with acetabular fracture, attention should be paid to the presence of osteoarthritis before operation, and for those with poor curative effect, attention should be paid to the occurrence of poor fracture reduction, articular cartilage injury, internal fixation into the joint, avascular necrosis of the femoral head, and combined infection, and timely intervention measures should be taken to reduce the risk of traumatic arthritis after operation.