Irreducible anteromedial radial head dislocation without fracture caused by transposed biceps tendon in an adult:A case report and literature review  

作　　者：Ming-Fu Fu Hai-Ning Zuo Tao Sun Ming-Zhang Mu Zhi-Yong Zhou 

机构地区：[1]Department of Orthopedic Surgery,Yantaishan Hospital,Yantai,Shandong Province,264003,China

出　　处：《Chinese Journal of Traumatology》2024年第3期180-186,共7页中华创伤杂志（英文版）

基　　金：supported by the Basic Research Category Project of Yantai Science and Technology Innovation Development Plan (2022JCYJ037),China.

摘　　要：Irreducible anteromedial radial head dislocation(IARHD)caused by transposed biceps tendon is rare.Delayed diagnosis and surgical failure often occur.A 46-year-old fisherman presented with 10 days history of painful swelling and restricted movement of his right elbow due to strangulation injury by a fishing boat cable.On examination,the images of the right elbow reveals in a"semi-extended and pronated"elastic fixation position.Radiography and 3-dimensional reconstruction CT reveals an isolated anteromedial radial head dislocation with extreme protonation of the radius and the bicipital tuberosity towards the posterior aspect of the elbow joint,and MRI shows biceps tendon wrapping around the radial neck,similar to umbilical cord wrapping seen in newborns.The Henry approach was applied for the first time to reduce the biceps tendon.The patient achieved a good functional recovery at 26 months,which represents the first reported case of IARHD without fracture caused by biceps tendon in an adult.In treatment of IARHD,attention should be paid to the phenomenon of biceps tendon transposition.Careful clinical examination,comprehensive imaging modalities,and appropriate surgical approach are the keys to successful management.

关 键 词：Biceps tendon Henry approach IRREDUCIBLE Anteromedial dislocation Radial head ELBOW ADULT 

分 类 号：R687.3[医药卫生—骨科学]