1·Objective: to provide anatomical basis for the placement of lag screw in the acetabular anterior column.
目的：为髋臼前柱拉力螺钉内固定提供解剖学基础。
2·Objective: to provide anatomical basis for the placement of lag screw in the acetabular anterior column.
目的：为逆行髋臼后柱拉力螺钉内固定提供解剖学基础。
3·Conclusion: It is possible that retrograde lag screw fix the posterior column of the acetabulum clinically.
结论：髋臼后柱逆行拉力螺钉内固定是可行的。
4·Objective to provide the anatomic basis for the lag screw placement in the anterior column of the acetabulum.
目的为经髋臼前柱螺钉固定提供解剖学依据。
5·Objective: to provide anatomical basis for the placement of retrograde lag screw in the posterior column of acetabular.
目的：为逆行髋臼后柱拉力螺钉内固定提供解剖学基础。
6·Objective: To study the best entry points, direction and length of screw in acetabular anterior column lag screw technique.
目的：研究髋臼前柱拉力螺钉内固定技术中螺钉的最佳进钉点、方向和长度。
7·Objective To evaluate the effectiveness of lag screw internal fixation in treatment of condylar process fractures of the mandible.
目的对拉力螺钉内固定治疗髁状突骨折的效果进行评价。
8·Additionally, in complex proximal tibial fractures, comminution often extends posteriorly, further complicating stable lag screw fixation.
另外，在复杂的胫骨平台骨折，骨折粉碎可以延伸至后侧，不利于稳定螺钉的固定。
9·Placement of an anteroposterior lag screw can also be complicated by screw traffic if there are a large number of screws fixing the primary fracture.
如果对骨折进行大量前后位固定的话，螺钉的位置安置也是问题。
10·Objective To investigate the possibility of percutaneous cannulated lag screw fixation for treatment the injury of sacroiliac joint union under CT-guided.
目的探讨在CT引导下经皮微创技术置入松质骨拉力螺钉内固定治疗骶髂关节复合体损伤的可行性。