Reduction clamps with points (Weber clamp) were the best for maintenance and accurate reduction. Drill holes are useful for maintenance of the reduction clamps. The safe zone, when giving consideration of the neurovascular bundles, was a quadrilateral surface of the ilium. The intraarticular opening was more prominent in the transtectal subtype. RESULTS: The reduction quality was poor in order of transtectal, juxtatectal and infratectal. The pictures of the intra-articular fracture displacements were taken by a camera and these were uploaded and analyzed by the TraumaCad® computer program (Brainlab). The fracture displacements were measured at the extra-articular area and the intra-articular joint portion. Twelve holes around the fracture were drilled for the maintenance of the clamps. Ten different reduction clamps were applied for reduction of the fractures. MATERIALS AND METHODS: Six fractures in 3 different subtypes of transverse fractures were artificially created. This study also determined the proper type of clamps to use and the proper zone for achieving accurate reductions in Sawbones models. The purpose of this study is to verify the quality of reduction between the different subtypes (transtectal, juxtatectal, and infratectal) of transverse fractures. ABSTRACT PURPOSE: The transversely oriented fracture lines are very difficult to reduce during operations, even after clear exposure of the fracture site, in acetabular fractures.
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