Both Column Fixation Corridor in Pelvic Surgery

Navigating the Both Column Fixation Corridor: Anatomical Insights From a Virtual Pelvic Screw Placement Study

The concepts of the Both Column Fixation Corridor (BCFC) and Both Column Screws (BCS) have emerged as innovative approaches in orthopedic surgery yet have not been extensively explored in the literature. This study aims to evaluate the feasibility and potential advantages of this novel screw fixation technique, thereby filling the existing gap in knowledge and establishing standards for its application.

Pelvic CT data will be collected from 400 healthy adults, including 200 males and 200 females. The Synapse software will be utilized to simulate the placement of both anterior and posterior Both Column Screws (BCS) in the Both Column Fixation Corridor (BCFC). Screws will be virtually implanted into the BCFC using the "Ozturk Procedure," a technique developed based on clinical practice. Measurements will include the thickness and length of each BCS for both anterior (aBCS) and posterior (pBCS) placements, as well as the distances from the screw centers to the spina iliaca anterior superior (SIAS). Additionally, the necessary caudo-cranial (CCT) and centro-lateral tilts (CLT) for achieving axial fluoroscopic visualization of the BCFC will be measured.

Inclusion Criteria:

• Adults aged 18 to 65 years.
• Both male and female participants.
• Participants with healthy pelvic anatomy as determined by CT imaging, without any previous fractures, deformities, or surgical interventions that could alter the pelvic structure.

Exclusion Criteria:

• History of pelvic or acetabular fractures.
• Previous pelvic surgeries that could alter the anatomical structure.
• Conditions significantly affecting bone quality, such as osteoporosis or metabolic bone diseases.