Eleven cases of sacroiliac dislocation and/or fracture (Malgaigne pattern) were 
successfully reduced and stabilized using two threaded compression rods. The 
mean follow-up period was 26.1 months (range, seven to 45 months). None of the 
implants failed and there was no subsequent displacement. Two patients had mild 
residual lower back pain, and one was treated with implant removal without 
subsequent relief of pain. One patient, in whom the operation was done 110 days 
after dislocation, had extension of an incomplete preoperative peroneal nerve 
palsy. After anterior pelvic ring stabilization has been performed, two threaded 
3/16-inch diameter rods are driven from the normal posterior iliac wing 
superficial to the sacrum and through the reduced opposite iliac wing. 
Compression is obtained with washers and nuts. This procedure can be performed 
safely and effectively, providing stable fixation and allowing early 
mobilization to help lessen or prevent the complications associated with 
prolonged bed rest.