Applied Anatomy Of Lag Screw Internal Fixation In The Posterior Column Of The Acetabulum

ObjectiveTo provide anatomical basis for the placement of lag screw in the posterior column of the acetabulum. MethodsSix fresh-frozen cadaveric pelvis were prepared, all specimens were cleaned of residual musculature with taken to preserve spinal ligaments.the acetabula were placed in the prone position. A kirschner wire was placed in the center of the tuberosity and is drilled up the posterior column. Frequent radiographic images of the iliac and obturator oblique views were used to guide the wire up the posterior column. After the wire was placed, the screw...