[Objective]To introduce the surgical technique and preliminary clinical results of percutaneous retrograde screw fixation of acetabular fractures without significant displacement.[Methods]A total of 19 patients received percutaneous retrograde screw fixation of unremarkably displaced acetabular fractures.Preoperative virtual surgical design was carried out by using relevant computer software tech-nology to obtain individualized screw placement parameters.The insertion point was determined by combining preoperative planning and in-traoperative fluoroscopy,and the blunt separation to the bone surface was conducted.The guide wire was placed at the entry point with di-rection determined by C-arm fluoroscopy.Finally the screws were individually placed to fix the fracture in safe and accurate manner.[Re-sults]All the 19 patients had percutaneous retrograde acetabular anterior-posterior column screws placed successfully without neurovascu-lar injury or involvement of the hip cavity,with average operation time of(99.7±18.8)min,and the average intraoperative fluoroscopy times of(97.6±16.6).The postoperative X-ray and CT recheck revealed satisfactory screw placement in position and length.At the last follow-up,the excellent rate of the Merle d'Aubigne and Postel functional scores was 89.4％,and no complications such as screw loosening and bro-ken,fracture nonunion and re-displacement were found in anyone of them.[Conclusion]This percutaneous retrograde acetabular anterior-posterior column screw fixation based on individual preoperative computer planning for the treatment of non-displaced acetabular fractures is feasible minimal invasive technique and does achieve good clinical outcomes in a short period of time.
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