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Thesis
Design Envelope for Future Acetabular Implant Reconstructions and Statistical Shape Model Based on 15th-90th Percentile Ranges of Male and Female CT Scans
Master of Science (M.S.), Drexel University
Sep 2024
DOI:
https://doi.org/10.17918/00010717
Abstract
Severe bone loss in the pelvis, caused by factors such as previous revision total hip surgery or cancer, presents significant surgical reconstruction challenges with high risks of complications like infection and implant failure. This study aims to address the need for standardized, personalized implant solutions for these complex cases through the development of a statistical shape model (SSM) of the pelvis and corresponding design envelope. Utilizing CT scan data from the New Mexico Decedent Imaging Database, the study constructs percentile-based design templates for male and female pelvises, providing a foundation for improved acetabular implant reconstructions. The developed statistical shape model captures the anatomical variations seen in severe pelvic bone loss cases, offering a standardized yet adaptable approach for designing patient-specific implants. Because the SSM allows for detailed examination of specific defects, surgeons can better understand the extent of bone loss and predict surgical challenges. When the defect is less severe, like in cases of lysis, the surgery becomes easier to manage compared to more extensive bone loss. This insight enables surgeons to anticipate where complications may arise, identify areas where surgery may be more straightforward, and explore potential modifications to existing implant solutions to improve recovery times and extend the longevity of the implant. By focusing on anatomical intricacies, the model seeks to enhance surgical outcomes, reduce complications, and improve the quality of life for patients undergoing pelvic reconstruction. Through verification testing, the study ensures the reliability and accuracy of the SSM. This research contributes significantly to the field by providing a framework for tailoring implant solutions, advancing scientific understanding, and enhancing medical practices in pelvic reconstruction. The project's deliverables include a detailed statistical shape model and design envelopes representing pelvic shapes across percentiles, serving as valuable resources for researchers, engineers, and surgeons.
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Details
- Title
- Design Envelope for Future Acetabular Implant Reconstructions and Statistical Shape Model Based on 15th-90th Percentile Ranges of Male and Female CT Scans
- Creators
- Lalith Sai Rahul Barla
- Contributors
- Steven M. Kurtz (Advisor)Fred D. Allen Jr. (Advisor)
- Awarding Institution
- Drexel University
- Degree Awarded
- Master of Science (M.S.)
- Publisher
- Drexel University; Philadelphia, Pennsylvania
- Number of pages
- 54 pages
- Resource Type
- Thesis
- Language
- English
- Academic Unit
- School of Biomedical Engineering, Science, and Health Systems (1997-2026); Drexel University
- Other Identifier
- 991021901914104721