Research progress of Imaging parameters and clinical application of infra-acetabular channel screws / 中华骨科杂志

ABSTRACT

The aim of acetabular fracture surgery is to achieve anatomical reduction and potent fixation, to allow early functional rehabilitation of the injured hip joint, and to avoid postoperative complications such as joint stiffness, muscle atrophy, thrombosis, pneumonia and traumatic arthritis. In the past 10 years, the concept of minimally invasive treatment has developed rapidly. As a minimally invasive and precise internal fixation method, the pelvic channel screw concept has been widely used including infra-acetabular channel screw which is a channel on the inside of the hip joint, pass through both columns and parallel to the pelvic quadrilateral. Infra-acetabular channel screw is a combination of quadrilateral wall screw technique and pelvic osseous fixation pathways screw technique, which is applied to acetabular fractures that anterior and posterior column Separated. In Recent years, anatomical studies have found that more than 90% population exist a channel to place an 5 mm infra-acetabular screw safely, and described its entry point, angle, channel morphology, furthermore, vitro biomechanical have confirmed that the infra-acetabular channel screw can increase the fixation strength of acetabular fractures significantly. The clinical application has tested and verified its operability. The patients good recovery also proved the application value of the infra-acetabular screw. Thus a retrograde infra-acetabular screw technique is derived.