有限元分析臀中肌宽度比在非创伤性股骨头坏死病程进展中的作用机制  

Action mechanism of gluteus medius width ratio in progression of non-traumatic femoral head necrosis by finite element analysis

作　　者：袁颖嘉 江禹来 李津 王珂 王煜 林天烨 张庆文 何伟 魏秋实 Yuan Yingjia;Jiang Yulai;Li Jin;Wang Ke;Wang Yu;Lin Tianye;Zhang Qingwen;He Wei;Wei Qiushi(Third Affiliated Hospital of Guangzhou University of Chinese Medicine,Guangzhou 510405,Guangdong Province,China;Guangdong Provincial Institute of Traditional Chinese Medicine Osteopathy,Guangzhou 510405,Guangdong Province,China;Third Clinical Medical College of Guangzhou University of Chinese Medicine,Guangzhou 510080,Guangdong Province,China)

机构地区：[1]广州中医药大学第三附属医院,广东省广州市510405 [2]广东省中医骨伤研究院,广东省广州市510405 [3]广州中医药大学第三临床医学院,广东省广州市510080

出　　处：《中国组织工程研究》2024年第33期5276-5282,共7页Chinese Journal of Tissue Engineering Research

基　　金：国家自然科学基金面上项目(82274544)项目负责人:魏秋实;广东省中医药管理局项目(20223012),项目负责人:张庆文

摘　　要：背景:臀中肌不仅可外展髋关节,在限制股骨头外移方面也起到重要作用。目前,尚缺乏臀中肌状态与非创伤性股骨头坏死塌陷的相关研究。目的:探讨臀中肌宽度比、髋关节内侧间隙比与非创伤性股骨头坏死病程进展的关系,通过有限元分析探讨臀中肌萎缩对股骨头坏死股骨头表面、坏死区应力的影响。方法:回顾性分析广州中医药大学第三附属医院收治的单侧非创伤性股骨头坏死患者,所有患者均随访2年以上,根据随访过程中是否出现股骨头塌陷分为塌陷组和未塌陷组,测量并计算患者髋关节内侧间隙比、臀中肌宽度比、Sharp角、臀中肌长度比及臀中肌激活角,对比两组间差异。于初次就诊、随访3,6,12,24个月测量并计算内侧间隙比和臀中肌宽度比,探究这2个指标在非创伤性股骨头坏死病程进展中的变化情况。此外,通过三维有限元分析技术,基于CT数据构建日本骨坏死研究会分型C1型股骨头坏死骨性模型;同时基于MRI数据构建臀中肌模型,分为臀中肌萎缩组(臀中肌宽度比74%-76%)及臀中肌正常组(臀中肌宽度比94%-96%),每组构建10个模型,约束股骨远端的6个自由度为零,对骶骨上表面沿Z轴施加600 N压力。对比两组模型股骨头表面、坏死区应力分布情况、最大应力值及坏死区最大位移。结果与结论:①共纳入153髋153例患者,男67例,女86例;②24个月随访时,塌陷组内侧间隙比显著高于非塌陷组(P<0.05),塌陷组臀中肌宽度比显著低于非塌陷组(P<0.05);两组的Sharp角、臀中肌激活角及臀中肌长度比差异无显著性意义(P>0.05);③随访时间超过3个月起,塌陷组臀中肌宽度比均低于非塌陷组(P<0.05);随访时间超过12个月起,塌陷组内侧间隙比均高于非塌陷组(P<0.05);④Pearson相关分析显示塌陷组随访时间与内侧间隙比呈显著正相关(P<0.05),随访时间与臀中肌宽度比呈显著负相关(P<0.05),且臀�BACKGROUND:The gluteus medius not only abducts the hip joint,but also plays an important role in limiting the external movement of the femoral head.At present,there is a lack of research on the correlation between gluteus medius status and non-traumatic femoral head necrosis.OBJECTIVE:To investigate the relationship between the gluteus medius width ratio and the medial space ratio of the hip joint and the progression of non-traumatic femoral head necrosis,and to explore the effect of gluteus medius atrophy on the surface and necrotic zone stress of the femoral head necrosis through finite element analysis.METHODS:Retrospective analysis of unilateral non-traumatic femoral head necrosis patients admitted to Third Affiliated Hospital of Guangzhou University of Chinese Medicine was performed.All patients were followed up for an average of more than 2 years.They were divided into a collapsed group and a non-collapsed group based on whether there was collapse of the femoral head during the follow-up.Medial space ratio,gluteus medius width ratio,Sharp angle,gluteus medius length ratio,and gluteus medius activation angle were measured and calculated.The differences in these indicators were compared between the two groups.At the first visit and follow-up at 3,6,12,and 24 months,the medial space ratio and gluteus medius width ratio were measured and calculated to explore the changes of these two indicators in the course of non-traumatic femoral head necrosis.In addition,using three-dimensional finite element analysis,a Japanese Investigation Committee classification C1 type femoral head necrosis model was constructed based on CT data.At the same time,based on MRI data,a model of the gluteus medius muscle was constructed and divided into a gluteus medius muscle atrophy group(gluteus medius width ratio:74%-76%)and a gluteus medius muscle normal group(gluteus medius width ratio:94%-96%).Each group constructed 10 models,with 6 degrees of freedom of the distal femur constrained to zero.600 N pressures were applied along the Z-a

关 键 词：股骨头坏死 臀中肌宽度比 髋关节内侧间隙比 塌陷 力学机制 

分 类 号：R459.9[医药卫生—治疗学] R318[医药卫生—临床医学] R496