A biomechanical study of sacroiliac dislocation treated with euthyphoria reduction and percutaneous canulated screw fixation
- VernacularTitle:骶髂关节脱位直视复位空心螺钉固定的基础研究及临床应用
- Author:
Yi-Jun REN
;
Gang WANG
;
Bin CHEN
;
Yu QIN
;
Liangbin MEI
;
Ruijin WANG
;
Weidong ZHAO
;
- Publication Type:Journal Article
- Keywords:
Sacroiliac joint;
Euthyphoria reduction;
Cannulated screw;
Biomechanics;
Anatomy
- From:
Chinese Journal of Orthopaedic Trauma
2004;0(06):-
- CountryChina
- Language:Chinese
-
Abstract:
Objective To study the anatomy basis and biomechanical stability of euthyphoria reduction and percutaneous cannulated screw fixation for sacroiliac dislocation,and to evaluate the primary clinical efficacy of this method.Methods The distances from the anterior branches of the nerve roots at L4,and L5 and obturator nerve on the superior border of sacral ala to the sacroiliac joint were measured on 12 adult cadavers (24 sides) fixed and preserved by formalin.Models of sacroiliac dislocation were made on six pelvic specimens of fresh cadavers.A comparison of stability was made on the six models between the fixation studied here and the traditional fixations by posterior percutaneous sacroiliac screws and by anterior sacroiliac joint plates.At the same time,17 patients with type C Tile fracture were treated with our method.The clinical efficacy was analyzed for the 17 patients.Results The distances from the anterior branches of the nerve roots at L4,and L5 and obturator nerve on the superior border of sacral ala to the sacroiliac joint were 20.24?1.20mm,23.80?1.43mm,and 16.26?2.07 mm respectively. There was no statistically significant difference in stability between our method and the traditional fixation by posterior percutaneous sacroiliac screws,though ours seemed better.Follow-ups for the 17 cases averaged 2.2 years,re- vealing fine functional recovery in all according to Matta scoring.Conclusions Euthyphoria reduction and per- cutaneous cannulated screw fixation can lead to sufficient biomechanical stability for the sacroiliac joint and effec- tively avoid nervous injuries.In addition,our method is simple and clinically effective,It is recommendable for small and middle-sized hospitals.
