Custom Triflange Acetabular Implants for Complex Hip Revisions: A Case Series

Area of Science:

• Orthopaedic Surgery
• Biomedical Engineering
• Medical Device Technology

Background:

• Revision total hip arthroplasty (THA) is challenging with extensive acetabular defects (Paprosky 3A/3B, AAOS 3/4).
• Conventional methods may be insufficient for severe acetabular bone loss.
• Custom triflange acetabular components and patient-specific acetabular implants (PSAIs) are potential solutions.

Purpose of the Study:

• To describe the use of 3D printing and rapid prototyping for custom acetabular components in revision THA.
• To evaluate the application of these technologies in managing extensive acetabular defects.
• To highlight the role of customized implants in improving surgical planning and outcomes.

Main Methods:

• Utilized advanced 3-dimensional printing and rapid prototyping.
• Designed and manufactured custom acetabular components tailored to individual patient anatomy.
• Applied these custom components in a case series of revision THA with severe acetabular defects.

Main Results:

• Demonstrated the feasibility of using 3D-printed custom acetabular components for complex defect reconstruction.
• Facilitated precise preoperative planning and surgical execution.
• Showcased potential for enhanced pelvic stabilization and improved defect management.

Conclusions:

• 3D-printed custom acetabular implants are valuable tools for addressing severe acetabular defects in revision THA.
• These patient-specific implants enable tailored reconstruction and stabilization.
• Advanced manufacturing technologies can lead to improved surgical outcomes in challenging cases.