A Soft Tissue-Borne Patient-Specific Guide for Foreign Body Removal in the Facial Region

Foreign body removal in the facial region poses significant challenges due to the complex anatomy and the proximity to critical structures. This study introduces a soft tissue-borne patient-specific guide (PSG) designed to enhance precision and minimize invasiveness in foreign body removal. Four patients underwent foreign body removal using PSGs, with CT and cone-beam computed tomography (CBCT) imaging employed for segmentation and detailed analysis of both hard and soft tissues. This approach enabled the planning and design of stable and personalized guides. Ultrasound tracing was used for intraoperative verification. All procedures were successful, with minimal scarring, no complications, and reduced operative time. The use of PSGs improved surgical accuracy and efficiency, highlighting their potential for foreign body removal in other regions of the body and for broader clinical applications in maxillofacial surgeries.