This retrospective observational study aims to define the optimal antegrade entry point for screw placement in the anterior column fixation corridor (ACFC) of the acetabulum. Using fluoroscopic visualization techniques, the study examines computed tomography (CT) scans from 500 healthy adult patients to simulate screw placement and measure anatomical parameters. The goal is to determine patient-specific entry points and to assess the feasibility of screw placement using axial fluoroscopic views. The study also investigates gender-specific anatomical variations to provide insights for safer and more precise screw placement during anterior column fixation in pelvic surgery.
This study focuses on developing and validating a fluoroscopic visualization technique for identifying the optimal antegrade entry point (OAEP) in the anterior column fixation corridor (ACFC) of the acetabulum during pelvic surgery. Using three-dimensional reconstructions from pelvic computed tomography (CT) data of 500 healthy adults, the study simulates screw placement within the ACFC. A cylinder representing the screw is inserted virtually through the OAEP, ensuring that it remains within the confines of the fixation corridor without breaching its boundaries. The study records anatomical measurements, including the corridor's diameter, length, and the angles required for sagittal and coronal plane inclinations to visualize the OAEP. The study also examines gender-specific anatomical variations, including differences in ACFC diameter, length, and required fluoroscopic angles. By defining patient-specific entry points and establishing a reliable fluoroscopic technique, this study aims to provide a practical and accessible method for anterior column fixation, minimizing complications and improving the safety and precision of screw placement in pelvic surgeries. This novel approach has the potential to offer a cost-effective alternative to more expensive navigation systems, making it widely applicable in clinical settings.
Study Type
OBSERVATIONAL
Enrollment
500
This study is purely observational and does not involve any direct intervention. It utilizes retrospective analysis of computed tomography (CT) scans to simulate the fluoroscopic visualization and screw placement technique in the anterior column fixation corridor (ACFC) of the acetabulum. The objective is to define the optimal antegrade entry point and assess anatomical parameters without performing any physical intervention on the participants.
Bakırköy Dr. Sadi Konuk Education and Research Hospital, Department of Orthopedics and Traumatology
Istanbul, Turkey (Türkiye)
Axial Visualization Success
Success in obtaining axial fluoroscopic visualization of the anterior column fixation corridor (ACFC) and optimal antegrade entry point (OAEP).
Time frame: During the simulation of the fluoroscopic imaging, typically within 1 hour of starting the procedure.
Screw Placement Feasibility
Feasibility of virtual screw placement within the ACFC without breaching the corridor boundaries.
Time frame: During the simulation of the screw placement, typically within 1 hour of starting the procedure.
ACFC Diameter (ACFC-R)
Measurement of the ACFC diameter in millimeters (R) to assess screw placement feasibility.
Time frame: During the simulation of the screw placement, typically within 1 hour of starting the procedure.
ACFC Length (ACFC-L)
Measurement of the ACFC length in millimeters (L) to assess screw placement feasibility.
Time frame: During the simulation of the screw placement, typically within 1 hour of starting the procedure.
Sagittal Plane Inclination (SPI)
Measurement of the sagittal plane inclination (SPI) required for optimal fluoroscopic visualization of the ACFC.
Time frame: During the simulation of the screw placement, typically within 1 hour of starting the procedure.
Coronal Plane Inclination (CPI)
Measurement of the coronal plane inclination (CPI) required for optimal fluoroscopic visualization of the ACFC.
Time frame: During the simulation of the screw placement, typically within 1 hour of starting the procedure.
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