Object:To explore the entering spot,the length,the diameter and the direction of the iliac screw in the lumbopelvic fixation operations.

Reconstruction with massive iliac bone to treat comminuted fracture combined with defect of tibial plateau;

Prevention and treatment of complications in the donor site of iliac bone autograft;

The osteoblast counting in iliac bone marrow of cleft lip and palate patients of different ages;

MRI Diagnosis of Ewing's Sarcoma in Ilium;

A case of ilium Brodie s bone abscess;

One case of huge extrogenous chondroma of ilium;

Reconstruction of mandibular defects using non-vascularized iliac bone grafts with placement of screw-type dental implants;

The Culture of the Iliac Growth-plate Chondrocytes and the Study on Its Cartilage-formation Role in Vivo;

C-arm fluoroscopic guided percuteaneous iliosacral screws fixation for C-type pelvic fracture;

Objective: To provide anatomic basis for iliosacral screw fixation at the level of the pedicle of the first sacral vertebra (S_1), the present study was carried out.

[Objective] By studying the applied anatomy of Chinese adult pelvic posterior ring structure and CT measurement of the parameter of screw fixation for the sacroiliac joint to provide the related morphological data for the application of iliosacral screw fixation in sacroiliac joint disruption.

Applied anatomy of percutaneous fixation using sacroiliac screw;

Internal fixation using sacroiliac screw is a fine surgery method .

Objective To investigate the best way for projecting the axial view of pedicel of S1 by the imageology observation of pedicel of S1 in different angle and to guide the sacroiliac screw to insert safely in operation.