Anatomical Study Of The Security Of The Reconstructed Plate Internal Fixation On The Fracture Of The Posterior Column Of The Acetabulum

Objective:Mainly is pass to the posterior column of theacetabulum of some anatomical structures carry on theobservation and measure, according to the projection on theposterior column of the acetabulum divides the dangerous areaand opposite dangerous areas that the screw fixes. Clue onthese dangerous districts to the clinical doctor. Let themapprehend across-the-board to the posterior column of theacetabulumn of the dissection structures .Avoid the screwsplace into the joint,and reduce vice-trauma in the surgicaloperation.Methods: To survey some index from the hipbone specimenunder the X ray by the identical specialist,including: Theacetabular edge goes to the bottom of the acetabular shadow ofthe perpendicular distance,the edge of the superior acetabulumgoes to the perpendicular distance of the ischiadic great notch,the eage of the inferior acetabulum goes to the perpendiculardistance of the middle of ischiadic thorn ,the perpendiculardistance is between the bottom of the acetabular and within thepelvis ,the point of intersection of the tangent through thebottom of the acetabulum and the superior of acetabulum goesto the distance of the edge of acetabulum,the point ofintersection of the tangent through the bottom of theacetabulum and the inferior of acetabulum goes to the distanceof the edge of acetabulum .Results: The acetabular edge goes to the bottom of theacetabular shadow of the perpendicular distance 1.17±0.17cm,the edge of the superior acetabulum goes to the perpendiculardistance of the ischiadic great notch 0.56±0.28cm,the eage ofthe inferior acetabulum goes to the perpendicular distance ofthe middle of ischiadic thorn 0.83±0.34cm,the perpendiculardistance is between the bottom of the acetabular and within thepelvis 1.91±0.18cm,the point of intersection of the tangentthrough the bottom of the acetabulum and the superior ofacetabulum goes to the distance of the edge of acetabulum 0.99±0.09cm,the point of intersection of the tangent through thebottom of the acetabulum and the inferior of acetabulum goes tothe distance of the edge of acetabulum 0.86±0.20cmConclusion: 1.To overpass observing the posterior column ofthe acetabulum acetabulum can divide it three parts,including:the subarea of the acetabulum ,the dangerous subarea,theopposite secure area2.Accorging to the measured value ,we simulate fixing thepelvis′s sample with the screws.The security and veracity is100﹪.3.So far as we unfold the ischiadic great notch and the middleof ischiadic thorn ,we can trace out the dangerous subarea withthe measured value and some metalline needles and needn′tunfold the joint cavity and added tissue to reduce thevice-trauma as most as possible in the operation of theacetabular fracture.