{"title":"克氏针治疗儿童肱骨髁上骨折的有限元分析及一种新的治疗方法","authors":"Bicheng Liu, Hanjie Liu, Xiangyu Lv, Yu Wang, Chenglei Zhao, Man He, Jingxin Zhao","doi":"10.1007/s00402-025-06074-6","DOIUrl":null,"url":null,"abstract":"<div>\n \n <span>AbstractSection</span>\n Purpose\n <p>Supracondylar humerus fractures in children are common elbow injuries. This finite element analysis (FEA) study investigates the biomechanical properties of five Kirschner pin fixation techniques for pediatric extension-type fractures, with a focus on proposing a novel posterolateral double-pin caudal fixation method (Group E).</p>\n \n <span>AbstractSection</span>\n Method\n <p>A three-dimensional finite element model was developed based on CT scans of a 5-year-old child’s humerus to simulate extension-type fractures. Five fixation configurations were compared: Group A: Mediolateral cross-pinning (3 pins); Group B: Cross-pinning (2 pins); Group C: Lateral fan-pinning (3 pins); Group D: Lateral fan-pinning (2 pins); Group E: Novel technique with two lateral pins connected extracorporeally (2 pins) Biomechanical testing includes tensile (30 N·mm), torsion (135 N·mm), and inversion (100 N·mm) load testing for all groups.</p>\n \n <span>AbstractSection</span>\n Results\n <p>Optimal stability: Group A (tensile: 167.15 MPa, torsion: 153.96 MPa, inversion: 146.98 MPa).Novel Group E performance: Tensile: 174.02 MPa (vs. 176.98 MPa in Group D), Torsion: 162.99 MPa (vs. 236.8 MPa in Group D), Inversion: 169.19 MPa (vs. 151.11 MPa in Group D), Group E significantly outperformed Group D and approached the stability of Groups B/C.</p>\n \n <span>AbstractSection</span>\n Conclusion\n <p>The novel extracorporeal-connected double-pin fixation (Group E) provides comparable biomechanical stability to conventional three-pin techniques while eliminating medial pinning-related ulnar nerve injury risks. It represents a viable optimized option for clinical practice.</p>\n \n <span>AbstractSection</span>\n Level of evidence\n <p>IV (Computational biomechanical study).</p>\n \n </div>","PeriodicalId":8326,"journal":{"name":"Archives of Orthopaedic and Trauma Surgery","volume":"145 1","pages":""},"PeriodicalIF":2.1000,"publicationDate":"2025-10-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Finite element analysis of the treatment of supracondylar humerus fractures in children with kirschner’s pin and a new method of treatment\",\"authors\":\"Bicheng Liu, Hanjie Liu, Xiangyu Lv, Yu Wang, Chenglei Zhao, Man He, Jingxin Zhao\",\"doi\":\"10.1007/s00402-025-06074-6\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div>\\n \\n <span>AbstractSection</span>\\n Purpose\\n <p>Supracondylar humerus fractures in children are common elbow injuries. This finite element analysis (FEA) study investigates the biomechanical properties of five Kirschner pin fixation techniques for pediatric extension-type fractures, with a focus on proposing a novel posterolateral double-pin caudal fixation method (Group E).</p>\\n \\n <span>AbstractSection</span>\\n Method\\n <p>A three-dimensional finite element model was developed based on CT scans of a 5-year-old child’s humerus to simulate extension-type fractures. Five fixation configurations were compared: Group A: Mediolateral cross-pinning (3 pins); Group B: Cross-pinning (2 pins); Group C: Lateral fan-pinning (3 pins); Group D: Lateral fan-pinning (2 pins); Group E: Novel technique with two lateral pins connected extracorporeally (2 pins) Biomechanical testing includes tensile (30 N·mm), torsion (135 N·mm), and inversion (100 N·mm) load testing for all groups.</p>\\n \\n <span>AbstractSection</span>\\n Results\\n <p>Optimal stability: Group A (tensile: 167.15 MPa, torsion: 153.96 MPa, inversion: 146.98 MPa).Novel Group E performance: Tensile: 174.02 MPa (vs. 176.98 MPa in Group D), Torsion: 162.99 MPa (vs. 236.8 MPa in Group D), Inversion: 169.19 MPa (vs. 151.11 MPa in Group D), Group E significantly outperformed Group D and approached the stability of Groups B/C.</p>\\n \\n <span>AbstractSection</span>\\n Conclusion\\n <p>The novel extracorporeal-connected double-pin fixation (Group E) provides comparable biomechanical stability to conventional three-pin techniques while eliminating medial pinning-related ulnar nerve injury risks. It represents a viable optimized option for clinical practice.</p>\\n \\n <span>AbstractSection</span>\\n Level of evidence\\n <p>IV (Computational biomechanical study).</p>\\n \\n </div>\",\"PeriodicalId\":8326,\"journal\":{\"name\":\"Archives of Orthopaedic and Trauma Surgery\",\"volume\":\"145 1\",\"pages\":\"\"},\"PeriodicalIF\":2.1000,\"publicationDate\":\"2025-10-03\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Archives of Orthopaedic and Trauma Surgery\",\"FirstCategoryId\":\"3\",\"ListUrlMain\":\"https://link.springer.com/article/10.1007/s00402-025-06074-6\",\"RegionNum\":3,\"RegionCategory\":\"医学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q2\",\"JCRName\":\"ORTHOPEDICS\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Archives of Orthopaedic and Trauma Surgery","FirstCategoryId":"3","ListUrlMain":"https://link.springer.com/article/10.1007/s00402-025-06074-6","RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"ORTHOPEDICS","Score":null,"Total":0}
Finite element analysis of the treatment of supracondylar humerus fractures in children with kirschner’s pin and a new method of treatment
AbstractSection
Purpose
Supracondylar humerus fractures in children are common elbow injuries. This finite element analysis (FEA) study investigates the biomechanical properties of five Kirschner pin fixation techniques for pediatric extension-type fractures, with a focus on proposing a novel posterolateral double-pin caudal fixation method (Group E).
AbstractSection
Method
A three-dimensional finite element model was developed based on CT scans of a 5-year-old child’s humerus to simulate extension-type fractures. Five fixation configurations were compared: Group A: Mediolateral cross-pinning (3 pins); Group B: Cross-pinning (2 pins); Group C: Lateral fan-pinning (3 pins); Group D: Lateral fan-pinning (2 pins); Group E: Novel technique with two lateral pins connected extracorporeally (2 pins) Biomechanical testing includes tensile (30 N·mm), torsion (135 N·mm), and inversion (100 N·mm) load testing for all groups.
AbstractSection
Results
Optimal stability: Group A (tensile: 167.15 MPa, torsion: 153.96 MPa, inversion: 146.98 MPa).Novel Group E performance: Tensile: 174.02 MPa (vs. 176.98 MPa in Group D), Torsion: 162.99 MPa (vs. 236.8 MPa in Group D), Inversion: 169.19 MPa (vs. 151.11 MPa in Group D), Group E significantly outperformed Group D and approached the stability of Groups B/C.
AbstractSection
Conclusion
The novel extracorporeal-connected double-pin fixation (Group E) provides comparable biomechanical stability to conventional three-pin techniques while eliminating medial pinning-related ulnar nerve injury risks. It represents a viable optimized option for clinical practice.
期刊介绍：
"Archives of Orthopaedic and Trauma Surgery" is a rich source of instruction and information for physicians in clinical practice and research in the extensive field of orthopaedics and traumatology. The journal publishes papers that deal with diseases and injuries of the musculoskeletal system from all fields and aspects of medicine. The journal is particularly interested in papers that satisfy the information needs of orthopaedic clinicians and practitioners. The journal places special emphasis on clinical relevance.
"Archives of Orthopaedic and Trauma Surgery" is the official journal of the German Speaking Arthroscopy Association (AGA).
求助内容：
应助结果提醒方式：
京公网安备 11010802042870号
