Publications by authors named "V G Sears"
Objective: The pattern, rate, and natural history of bone flap resorption following cranioplasty with frozen, autologous bone flap has not been fully defined. The authors sought to quantify the progression and natural history of bone flap resorption.
Methods: Patients who had craniectomy and delayed cranioplasty with stored, frozen bone flap between 2012 and 2022 were included in this study.
Background: With neck, aging the cervicomental angle becomes obtuse and may be influenced by hyoid bone aging. An understanding of hyoid position changes with aging will further our understanding of its role in neck contour changes.
Methods: A 3D volumetric reconstruction of 282 neck computed tomography scans was performed.
Article Synopsis
- The study investigates facial skeletal differences (dimorphism) in young white individuals undergoing gender-affirming surgery using statistical shape modeling (SSM), a new method that combines AI and 3D modeling.
- Based on CT scans of 98 patients, results indicate that male mandibles are generally larger and have a squarer shape, while female mandibles have smoother transitions at key angles.
- SSM proves to be an effective and automated tool for analyzing these gender differences in mandibular structure, potentially improving surgical planning and outcomes.
Article Synopsis
- Virtual surgical planning for head and neck reconstruction is increasingly using 3D-printed patient-specific titanium implants (PSIs), sparking debate over their effectiveness compared to traditional stock reconstruction plates.
- The study aimed to evaluate and compare the volumetric accuracy of PSIs versus stock plates in patients undergoing VSP-guided mandibular fibular free flap reconstructions at Mayo Clinic from 2016 to 2023.
- Surgical accuracy was measured by comparing preoperative plans and postoperative results, with lower root mean square error (RMSE) values indicating higher accuracy, while various patient characteristics were also considered in the analysis.
Purpose: Three-dimensional (3D) printing has had a significant impact on patient care. However, there is a lack of standardization in quality assurance (QA) to ensure printing accuracy and precision given multiple printing technologies, variability across vendors, and inter-printer reliability issues. We investigated printing accuracy on a diverse selection of 3D printers commonly used in the medical field.
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