Subchondral fatigue fracture of the femoral head in young military recruits:Potential risk factors  

作　　者：Jun-Zheng Yang Peng Chen Bai-Hao Chen Bin Zhao 

机构地区：[1]The Fifth Clinical College,Guangzhou University of Chinese Medicine,Guangzhou 510405,Guangdong Province,China [2]Department of Orthopaedics,The First Affiliated Hospital,Guangzhou University of Chinese Medicine,Guangzhou 510405,Guangdong Province,China [3]First School of Clinical Medicine,Guangzhou University of Chinese Medicine,Guangzhou 510405,Guangdong Province,China [4]Department of Sports Medicine,the Fourth Medical Center,Chinese PLA General Hospital,Beijing 100048,China

出　　处：《World Journal of Clinical Cases》2023年第28期6733-6743,共11页世界临床病例杂志

摘　　要：BACKGROUND Subchondral fatigue fracture of the femoral head(SFFFH)mainly occurs in young military recruits and might be confused with osteonecrosis of the femoral head.However,less research focuses on the risk factor for SFFFH.AIM To evaluate the intrinsic risk factors for SFFFH in young military recruits.METHODS X-ray and magnetic resonance imaging data were used for analysis.Acetabular anteversion of the superior acetabulum,acetabular anteversion of the center of the acetabulum(AVcen),anterior acetabular sector angle(AASA),posterior acetabular sector angle,superior acetabular sector angle,neck-shaft angle(NSA),inferior iliac angle(IIA),and ischiopubic angle were calculated.Then,logistic regression,receiver operating characteristic curve analysis,and independent samples t-test were performed to identify the risk factors for SFFFH.RESULTS Based on the results of logistic regression,age[odds ratio(OR):1.33;95%confidence interval(95%CI):1.12-1.65;P=0.0031]and treatment timing(OR:0.86;95%CI:0.75-0.96;P=0.015)could be considered as the indicators for SFFFH.AVcen(P=0.0334),AASA(P=0.0002),NSA(P=0.0007),and IIA(P=0.0316)were considered to have statistical significance.Further,AVcen(OR:1.41;95%CI:1.04-1.95)and AASA(OR:1.44;95%CI:1.21-1.77),especially AASA(area under curve:66.6%),should be paid much more attention due to the higher OR than other indicators.CONCLUSION We have for the first time unveiled that AASA and age could be key risk factors for SFFFH,which further verifies that deficient anterior coverage of the acetabulum might be the main cause of SFFFH.

关 键 词：Subchondral fatigue fracture of the femoral head Age Anterior acetabular sector angle Risk factors 

分 类 号：R687.3[医药卫生—骨科学]