Channel screw and W-shaped angular plate fixation of complexposterior acetabular fractures based on x-ray diagnostics

Abstract To investigate the surgical technique and clinical effect of cylindrical channel screw and AW-shaped Angle plate in the treatment of complex posterior acetabular fractures. This paper retrospectively analyzed the data of 36 patients with complex posterior acetabular fractures treated with column channel screws and W-shaped Angle plates from January 2016 to December 2020. Acetabular fractures are reduced and then fixed with percutaneous channel screws and W-shaped corner plates, or ordinary reconstruction plates. X-ray imaging technology was used to determine the location and type of fractures. During the operation, slot screws and W-shaped plates were applied to the fixation accurately, and X-ray fluoroscopy was used to ensure the correct position of the fasteners. Postoperatively, X-ray imaging was performed to evaluate the position, stability, and fracture healing of the internal fixator. At the last follow-up, no complications such as hip infection, failure of internal fixation, or hip dislocation occurred in both groups. There was 1 case of femoral head necrosis in each group. Ectopic ossification occurred in 2 patients in the control group. Traumatic arthritis was found in 3 cases in experimental group and 4 cases in control group. Therefore, percutaneous channel screws and W-shaped Angle plates can improve the fracture reduction rate, promote the improvement of hip functional rehabilitation, and reduce postoperative complications.