Antegrade Screw Placement Technique in Anterior Column of Acetabulum

NCT ID: NCT06634251

Last Updated: 2024-10-09

Basic Information

• Recruitment Status: COMPLETED
• Total Enrollment: 500 participants
• Study Classification: OBSERVATIONAL
• Study Start Date: 2024-06-01
• Study Completion Date: 2024-08-01

Brief Summary

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.

Detailed Description

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.

Conditions

Acetabulum Fracture

Study Design

• Observational Model Type: COHORT
• Study Time Perspective: RETROSPECTIVE

Study Groups

male group

This group consists of 250 healthy male adults whose pelvic CT scans were analyzed to define the optimal antegrade entry point and anatomical parameters for anterior column fixation. The fluoroscopic visualization technique and screw placement were simulated to assess anatomical variations and feasibility specific to the male cohort.

No intervention

Intervention Type: OTHER

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.

female group

This group consists of 250 healthy female adults whose pelvic CT scans were analyzed to define the optimal antegrade entry point and anatomical parameters for anterior column fixation. The fluoroscopic visualization technique and screw placement were simulated to assess anatomical variations and feasibility specific to the female cohort.

No intervention

Intervention Type: OTHER

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.

Interventions

No intervention

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.

Intervention Type: OTHER

Eligibility Criteria

Inclusion Criteria

• Patients with pelvic computed tomography (CT) scans that provide complete anatomical details of the pelvis.
• Patients aged 18 to 65 years.
• Patients with fully matured bone structures, without evidence of fractures, deformities, or prior orthopedic surgery.
• Patients with no history of rheumatologic disease, advanced osteoporosis, bone metastasis, or metabolic bone disorders.

Exclusion Criteria

• Patients with pelvic CT scans that do not fully display the anatomical structures.
• Patients younger than 18 years or older than 65 years.
• Patients with pelvic fractures, deformities, or prior orthopedic surgeries.
• Patients with incomplete clinical or radiological data.
• Patients with rheumatologic sequelae, bone metastasis, or metabolic bone diseases.

• Minimum Eligible Age: 18 Years
• Maximum Eligible Age: 65 Years
• Eligible Sex: ALL
• Accepts Healthy Volunteers: No

Sponsors

Bakirkoy Dr. Sadi Konuk Research and Training Hospital

OTHER_GOV

Sponsor Role: lead

Responsible Party

Vedat Öztürk

Specialist Doctor in Orthopedics and Traumatology

Responsibility Role: PRINCIPAL_INVESTIGATOR

Locations

Bakırköy Dr. Sadi Konuk Education and Research Hospital, Department of Orthopedics and Traumatology

Istanbul, , Turkey (Türkiye)

Countries

Turkey (Türkiye)

Other Identifiers

2024/45-2024-04-01

Identifier Type: -

Identifier Source: org_study_id