An Experiment Research Of Coxa X-ray Measure Of Improved Salter Osteotomy

[Objective]:To quantity research acetabulum forward and outward rotation angle change of Salter osteotomy and improved Salter osteotomy,then to supply a theory basis for improved Salter osteotomy used on clinical cases.[Method]:To take 10 normal spinal and pelvis from Chinese cadaver. One side ilium was cut with Salter osteotomy,and the cut part was opened and insert a wooden block which were 1.5cm,2.0cm,2.5cm respectively,and to get their direct an lateral x-ray photogram,then some strong glue was put on osteotomy area for conglutination. And then cut the same ilium with improved Salter osteotomy,and used the same method above to manage the ilium. Finally,the Sharp angle andacetabulum rotation angle were measured under the different conditions,then statistics analysis was done. [Results]:Sharp angle was decreased and acetabulum forward rotation angle increased in two kinds of osteotomy. The difference was significant (p<0.05). To composed improved Salter osteotomy with standard osteotomy,acetabulum forward rotation angle was increased significantly (p<0.05),acetabulum outward rotation angle was increased significantly (p<0.05). [Conclusion]:Both Salter osteotomy and improved Salter osteotomy for congenital hip joint dislocation can make acetabulum increase femoral head covered,the improved Salter osteotomy can make the angle change more significantly,so which can contain femoral head more sufficient.