The pedicle and iliac screw fixation in treatment of sacroiliac dislocation and fracture: CT tomography study
YANG Yun-Beng, CHEN Hong-Fen, WANG Fu-Meng, GU Yi, WANG Gang
Chinese Journal of Clinical Anatomy ›› 2012, Vol. 30 ›› Issue (4) : 404-407.
The pedicle and iliac screw fixation in treatment of sacroiliac dislocation and fracture: CT tomography study
Objective To investigate the value of digital model on evaluating pedicle screw and iliac screw in treating sacroiliac dislocation and fracture. Methods The pelvic CT data from 40 healthy adults were imported into the Mimics 10.0 software for three-dimensional reconstructing of pelvis. The anatomic parameters concerning with inserting angles and the ilium screws at different directions were measured on the virtual pelvis. Results The distance between lateral and medial ilium lamella（the maximum diameter of ilium screw）was about（6.00±0.84）mm，or （6.95±0.50）mm. The length of screw inserting was （59.97±7.99）mm，or （106.69±8.74）mm. TSA was （12.48±7.16）° or （43.93±6.09）°，CSA（56.41±6.47）° or （39.25±6.11）°，and SSA（29.91±5.55）° or 19.24±3.78）° at the different inserting direction, respectively. Conclusions Digital pelvic model is a valuable tool to guide clinical treatment of sacroiliac dislocation and fracture through pedicle screw and iliac screws.
Digital orthopedics / Pedicle and iliac screw / Sacroiliac joint / Internal fixation / Mimics10.0
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