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Automated patient-specific clavicle reconstruction plate design process
de Wet, C. 2025.Automated Patient-Specific Clavicle Reconstruction Plate Design Process. Unpublished masters thesis. Stellenbosch: Stellenbosch University [online]. Available: https://scholar.sun.ac.za/items/37b3b0bd-2b18-4e20-a925-b519e6bbf880
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| Language: | en_ZA |
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Stellenbosch : Stellenbosch University
2025
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| _version_ | 1867613818748665856 |
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| access_status_str | Open Access |
| author | De Wet, Charl |
| author2 | Van der Merwe, Johan |
| author_browse | De Wet, Charl Van der Merwe, Johan |
| author_facet | Van der Merwe, Johan De Wet, Charl |
| author_sort | De Wet, Charl |
| collection | Thesis |
| dc_rights_str_mv | Stellenbosch University |
| description | de Wet, C. 2025.Automated Patient-Specific Clavicle Reconstruction Plate Design Process. Unpublished masters thesis. Stellenbosch: Stellenbosch University [online]. Available: https://scholar.sun.ac.za/items/37b3b0bd-2b18-4e20-a925-b519e6bbf880 |
| format | Thesis |
| id | oai:scholar.sun.ac.za:10019.1/132161 |
| institution | Stellenbosch University (South Africa) |
| language | en_ZA |
| last_indexed | 2026-06-10T12:42:11.774Z |
| license_str | Other — see source repository |
| provenance_str_mv | Harvested via OAI-PMH from SUNScholar — Stellenbosch University Repository |
| publishDate | 2025 |
| publishDateRange | 2025 |
| publishDateSort | 2025 |
| publisher | Stellenbosch : Stellenbosch University |
| publisherStr | Stellenbosch : Stellenbosch University |
| record_format | dspace |
| source_str | SUNScholar — Stellenbosch University Repository |
| spelling | oai:scholar.sun.ac.za:10019.1/132161 Automated patient-specific clavicle reconstruction plate design process De Wet, Charl Van der Merwe, Johan Stellenbosch University. Faculty of Engineering. Dept. of Mechanical and Mechatronic Engineering. Orthopedic apparatus -- Design and construction Fractures -- Treatment Clavicle -- Surgery UCTD de Wet, C. 2025.Automated Patient-Specific Clavicle Reconstruction Plate Design Process. Unpublished masters thesis. Stellenbosch: Stellenbosch University [online]. Available: https://scholar.sun.ac.za/items/37b3b0bd-2b18-4e20-a925-b519e6bbf880 Thesis (MEng)--Stellenbosch University, 2025. ENGLISH ABSTRACT: Clavicle fractures are the most common fracture of the upper extremities, however, current treatment options do not offer enough flexibility to accommodate the diversity in clavicle anatomy. Patient-specific treatment of clavicle fractures can potentially be used to treat fractures and ensure clinical outcomes that have a closer resemblance to the non-pathological clavicle geometry. Nonetheless, patient-specific options are not available to surgeons at this time, and similar options in other fields of surgery are known to be complicated and time-consuming. This project aimed to develop an automated patient-specific plate design process that would have the advantages of patient-specific plating but be simple enough for an operator to employ in a timely manner. The focus of this study was specifically on Displaced Midshaft Clavicle Fractures (DMCF). As the healthy clavicle shape is rarely known before fracture, it was imperative that this process be able to estimate non-pathological clavicle shape from pathological input. For this purpose, a Statistical Shape Model (SSM) was created to learn the shape variation in clavicle anatomy. The SSM was then used to estimate non-pathological clavicles from fractured clavicle input. A design process was developed to find a predefined spline on any clavicle and use this as the basis for a patient-specific plate design. This process could then observe the estimated clavicles, and a patient-specific plate would be designed for each clavicle. The SSM was constructed from 44 clavicles, and the shape estimation and plate design process was tested on 9 clavicles that simulated DMCF. Validation of the process indicated that the SSM could generate plausible clavicle shapes and that most variation was accounted for in the model. The estimated clavicles were close matches to the actual clavicles it attempted to emulate, with a mean vertex estimation error of 0.88 mm and a maximum error of 3.71 mm. The mean plate prominence was 4.19 mm which compared favourably with values for conventional plates from literature (5.13 mm – 7.05 mm). The mean bone-plate distance was 1.13 which was within clinically acceptable ranges. AFRIKAANSE OPSOMMING: Sleutelbeenfrakture is die mees algemene fraktuur van die boonste ledemate, maar huidige behandelingsopsies bied nie genoeg buigsaamheid om die diversiteit in sleutelbeenanatomie te akkommodeer nie. Pasiëntspesifieke behandeling van sleutelbeenfrakture kan moontlik gebruik word om frakture te behandel en kliniese uitkomste te verseker wat ’n nader ooreenkoms het met die nie-patologiese sleutelbeengeometrie. Nietemin is pasiëntspesifieke opsies nie tans vir chirurge beskikbaar nie, en dit is bekend dat soortgelyke opsies in ander velde van chirurgie ingewikkeld en tydrowend is. Die doel van hierdie projek was om ’n geoutomatiseerde pasiëntspesifieke plaatontwerpproses te ontwikkel wat die voordele van pasiëntspesifieke behandeling sou hê, maar eenvoudig genoeg sou wees vir ’n operateur om vinnig te kan implementeer. Die fokus van hierdie studie was spesifiek op Verplaasde Middel Sleutelbeen Frakture (VMSF). Aangesien die gesonde sleutelbeenvorm selde bekend is voor ’n fraktuur, was dit noodsaaklik dat hierdie proses die nie-patologiese sleutelbeenvorm uit patologiese insette kan skat. Vir hierdie doel is ’n Statistiese Vormmodel (SVM) geskep om die vormvariasie in sleutelbeenanatomie te leer. Die SSM is dan gebruik om nie-patologiese sleutelbene te skat vanaf gebreukte sleutelbeen insette. ’n Ontwerpproses is ontwikkel om ’n voorafbepaalde paslyn op enige sleutelbeen te vind en dit te gebruik as die basis vir ’n pasiëntspesifieke plaatontwerp. Hierdie proses kan dan die geskatte sleutelbeen waarneem, en ’n pasiënt-spesifieke plaat sal vir elke sleutelbeen ontwerp word. Die SVM is saamgestel uit 44 sleutelbene, en die vormskatting en plaatontwerpproses is getoets op 9 sleutelbene wat VMSF gesimuleer het. Validasie van die proses het aangedui dat die SVM realistiese sleutelbeenvorms kon genereer en dat die meeste variasie in die model in ag geneem is. Die geskatte sleutelbene het nou ooreengestem met die werklike sleutelbene wat dit probeer naboots het, met ’n gemiddelde geskatte punt fout van 0.88 mm en ’n maksimum fout van 3.71 mm. Die gemiddelde plaatprominensie vir plate geskep is waargeneem as 4.19 mm, wat beter was as wat gerapporteer is in die literatuur (5.13 mm – 7.05 mm). Die gemiddelde been-plaatafstand was 1.13 mm, wat binne aanvaarbare perke is vir kliniese doeleindes. Masters 2025-05-28T09:23:26Z 2025-05-28T09:23:26Z 2025-03 Thesis https://scholar.sun.ac.za/handle/10019.1/132161 en_ZA Stellenbosch University xv, 100 pages : illustrations application/pdf Stellenbosch : Stellenbosch University |
| spellingShingle | Orthopedic apparatus -- Design and construction Fractures -- Treatment Clavicle -- Surgery UCTD De Wet, Charl Automated patient-specific clavicle reconstruction plate design process |
| title | Automated patient-specific clavicle reconstruction plate design process |
| title_full | Automated patient-specific clavicle reconstruction plate design process |
| title_fullStr | Automated patient-specific clavicle reconstruction plate design process |
| title_full_unstemmed | Automated patient-specific clavicle reconstruction plate design process |
| title_short | Automated patient-specific clavicle reconstruction plate design process |
| title_sort | automated patient specific clavicle reconstruction plate design process |
| topic | Orthopedic apparatus -- Design and construction Fractures -- Treatment Clavicle -- Surgery UCTD |
| url | https://scholar.sun.ac.za/handle/10019.1/132161 |
| work_keys_str_mv | AT dewetcharl automatedpatientspecificclaviclereconstructionplatedesignprocess |