Special screw corridors and imaging in pelvic ring trauma

Area of Science:

• Orthopedic Surgery
• Radiology
• Anatomy

Background:

• Intraoperative visualization is essential for successful implant application in pelvic ring injuries.
• Standard fluoroscopic views include anteroposterior and oblique projections for pelvic ring instabilities and acetabular fractures.

Purpose of the Study:

• To describe the radiographic anatomy of osseous corridors for safe screw placement in pelvic ring injuries.
• To define image intensifier angulations, risk zones, and corridor parameters for intraoperative guidance.

Main Methods:

• Detailed description of radiographic anatomy of key osseous corridors based on the 3-ring concept of the hemipelvis.
• Identification of retrograde and antegrade superior ramus/anterior column corridors, supraacetabular corridor, and gluteus medius pillar corridor.

Main Results:

• The study defines specific radiographic landmarks and parameters for major osseous corridors.
• Image intensifier angulations and associated risk zones are detailed for each corridor.

Conclusions:

• Understanding the detailed radiographic anatomy of these osseous corridors is critical for safe and effective intraoperative implant application in pelvic ring injuries.
• This knowledge facilitates precise screw placement, minimizing risks and improving surgical outcomes.