Experimental study on treatment of acetabular anterior column fractures: applyment of a minimally invasive percutaneous lag screw guide apparatus

BMC Musculoskeletal Disorders

Research Article

Yuan Gao¹  Qing-hua Si¹  Li-hai Zhang¹  Li-cheng Zhang¹  Pei-fu Tang¹  Xiu-yun Su²  Zhe Zhao³ 

[1] Department of Orthopedics, Chinese PLA General Hospital, No.28 Fuxing Road, Haidian District, 100853, Beijing, People’s Republic of China;Department of Orthopedics, Chinese PLA General Hospital, No.28 Fuxing Road, Haidian District, 100853, Beijing, People’s Republic of China;Department of Orthopedics, Affiliated Hospital of the Academy of Military Medical Sciences, No.8 Dongdajie Road, 100071, Beijing, People’s Republic of China;Department of Orthopedics, Chinese PLA General Hospital, No.28 Fuxing Road, Haidian District, 100853, Beijing, People’s Republic of China;Department of Orthopedics, Beijing Tsinghua Chang Gung Hospital, No.1 Block Tiantongyuan North, 102218, Beijing, People’s Republic of China;

关键词: Acetabula anterior column;    Fracture;    Minimally invasive;    Percutaneous;    Lag screw;    Guide apparatus;   

DOI  :  10.1186/s12891-015-0846-1

 received in 2015-03-21, accepted in 2015-12-07,  发布年份 2016

来源: Springer

【 摘 要 】

BackgroundThe aim of this study was to design a new minimally invasive percutaneous lag screw guide apparatus and to verify its adjuvant treatment of acetabular anterior column fracture on pelvis specimens.MethodsThis guide apparatus was self-developed based on the principles of “two points form a line” and “Rectangle”. Using C-arm fluoroscopy, this guide apparatus was used to conduct minimally invasive percutaneous lag screw internal fixation of acetabular anterior column fractures. Ten hollow lag screws were placed into 5 pelvis specimens.ResultResult showed no sign of any screws puncturing the cortex or entering into the hip joint on radiological assessment. The cross-section reconstructed vertical distance to the screw, on the cross-section acetabular notch and the cross-section of the screw where the distance of between the screw and the iliopectineal line’s arc roof was at its shortest, indicate that at all points (T, R-r) under the line with an inclination of 1 (namely T = R-r) the screw is within the cortex and does not puncture the acetabula anterior column or enter into the hip joint.ConclusionsWe may conclude that this self-developed guide apparatus solves the screw precision problem during the treatment of acetabular anterior column fractures through a minimally invasive percutaneous lag screw.

【 授权许可】

CC BY   
© Zhang et al. 2016