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

BMC Musculoskeletal Disorders
Li-hai ZhangPei-fu Tang

Abstract

The 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. This 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. Result 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. We may conclude that this self-developed guide apparatus solves the screw precision problem during the treatment of acetabular anterior column fractures thr...Continue Reading

References

Sep 25, 2001·The Journal of Bone and Joint Surgery. American Volume·D B CarmackD Freccero
Jan 27, 2004·Journal of Orthopaedic Trauma·Rami MosheiffMeir Liebergall
Feb 27, 2007·The Journal of Bone and Joint Surgery. British Volume·P V GiannoudisC S Roberts
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Citations

Sep 24, 2016·Der Unfallchirurg·A J StevensonA T Bucknill

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