Patient specific ankle-foot orthoses using rapid prototyping
Background Prefabricated orthotic devices are currently designed to fit a range of patients and therefore they do not provide individualized comfort and function. Custom-fit orthoses are superior to prefabricated orthotic devices from both of the above-mentioned standpoints. However, creating a c...
| Main Authors: | , , , , , , , , , , , |
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| Other Authors: | |
| Format: | Article |
| Language: | en_US |
| Published: |
BioMed Central Ltd.
2012
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| Online Access: | http://hdl.handle.net/1721.1/70122 |
| _version_ | 1811085602682044416 |
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| author | Mavroidis, Constantinos Ranky, Richard G. Sivak, Mark L. Patritti, Benjamin L. DiPisa, Joseph Caddle, Alyssa Gilhooly, Kara Govoni, Lauren Sivak, Seth Lancia, Michael Drillio, Robert Bonato, Paolo |
| author2 | Harvard University--MIT Division of Health Sciences and Technology |
| author_facet | Harvard University--MIT Division of Health Sciences and Technology Mavroidis, Constantinos Ranky, Richard G. Sivak, Mark L. Patritti, Benjamin L. DiPisa, Joseph Caddle, Alyssa Gilhooly, Kara Govoni, Lauren Sivak, Seth Lancia, Michael Drillio, Robert Bonato, Paolo |
| author_sort | Mavroidis, Constantinos |
| collection | MIT |
| description | Background
Prefabricated orthotic devices are currently designed to fit a range of patients and therefore they do not provide individualized comfort and function. Custom-fit orthoses are superior to prefabricated orthotic devices from both of the above-mentioned standpoints. However, creating a custom-fit orthosis is a laborious and time-intensive manual process performed by skilled orthotists. Besides, adjustments made to both prefabricated and custom-fit orthoses are carried out in a qualitative manner. So both comfort and function can potentially suffer considerably. A computerized technique for fabricating patient-specific orthotic devices has the potential to provide excellent comfort and allow for changes in the standard design to meet the specific needs of each patient.
Methods
In this paper, 3D laser scanning is combined with rapid prototyping to create patient-specific orthoses. A novel process was engineered to utilize patient-specific surface data of the patient anatomy as a digital input, manipulate the surface data to an optimal form using Computer Aided Design (CAD) software, and then download the digital output from the CAD software to a rapid prototyping machine for fabrication.
Results
Two AFOs were rapidly prototyped to demonstrate the proposed process. Gait analysis data of a subject wearing the AFOs indicated that the rapid prototyped AFOs performed comparably to the prefabricated polypropylene design.
Conclusions
The rapidly prototyped orthoses fabricated in this study provided good fit of the subject's anatomy compared to a prefabricated AFO while delivering comparable function (i.e. mechanical effect on the biomechanics of gait). The rapid fabrication capability is of interest because it has potential for decreasing fabrication time and cost especially when a replacement of the orthosis is required. |
| first_indexed | 2024-09-23T13:12:12Z |
| format | Article |
| id | mit-1721.1/70122 |
| institution | Massachusetts Institute of Technology |
| language | en_US |
| last_indexed | 2024-09-23T13:12:12Z |
| publishDate | 2012 |
| publisher | BioMed Central Ltd. |
| record_format | dspace |
| spelling | mit-1721.1/701222022-10-01T13:44:24Z Patient specific ankle-foot orthoses using rapid prototyping Mavroidis, Constantinos Ranky, Richard G. Sivak, Mark L. Patritti, Benjamin L. DiPisa, Joseph Caddle, Alyssa Gilhooly, Kara Govoni, Lauren Sivak, Seth Lancia, Michael Drillio, Robert Bonato, Paolo Harvard University--MIT Division of Health Sciences and Technology Bonato, Paolo Bonato, Paolo Background Prefabricated orthotic devices are currently designed to fit a range of patients and therefore they do not provide individualized comfort and function. Custom-fit orthoses are superior to prefabricated orthotic devices from both of the above-mentioned standpoints. However, creating a custom-fit orthosis is a laborious and time-intensive manual process performed by skilled orthotists. Besides, adjustments made to both prefabricated and custom-fit orthoses are carried out in a qualitative manner. So both comfort and function can potentially suffer considerably. A computerized technique for fabricating patient-specific orthotic devices has the potential to provide excellent comfort and allow for changes in the standard design to meet the specific needs of each patient. Methods In this paper, 3D laser scanning is combined with rapid prototyping to create patient-specific orthoses. A novel process was engineered to utilize patient-specific surface data of the patient anatomy as a digital input, manipulate the surface data to an optimal form using Computer Aided Design (CAD) software, and then download the digital output from the CAD software to a rapid prototyping machine for fabrication. Results Two AFOs were rapidly prototyped to demonstrate the proposed process. Gait analysis data of a subject wearing the AFOs indicated that the rapid prototyped AFOs performed comparably to the prefabricated polypropylene design. Conclusions The rapidly prototyped orthoses fabricated in this study provided good fit of the subject's anatomy compared to a prefabricated AFO while delivering comparable function (i.e. mechanical effect on the biomechanics of gait). The rapid fabrication capability is of interest because it has potential for decreasing fabrication time and cost especially when a replacement of the orthosis is required. 2012-04-24T20:16:18Z 2012-04-24T20:16:18Z 2011-01 2010-04 Article http://purl.org/eprint/type/JournalArticle 1743-0003 http://hdl.handle.net/1721.1/70122 Mavroidis, Constantinos et al. “Patient Specific Ankle-foot Orthoses Using Rapid Prototyping.” Journal of NeuroEngineering and Rehabilitation 8.1 (2011): 1. Web. en_US http://dx.doi.org/10.1186/1743-0003-8-1 Journal of NeuroEngineering and Rehabilitation Creative Commons Attribution http://creativecommons.org/licenses/by/2.0 application/pdf BioMed Central Ltd. BioMed Central |
| spellingShingle | Mavroidis, Constantinos Ranky, Richard G. Sivak, Mark L. Patritti, Benjamin L. DiPisa, Joseph Caddle, Alyssa Gilhooly, Kara Govoni, Lauren Sivak, Seth Lancia, Michael Drillio, Robert Bonato, Paolo Patient specific ankle-foot orthoses using rapid prototyping |
| title | Patient specific ankle-foot orthoses using rapid prototyping |
| title_full | Patient specific ankle-foot orthoses using rapid prototyping |
| title_fullStr | Patient specific ankle-foot orthoses using rapid prototyping |
| title_full_unstemmed | Patient specific ankle-foot orthoses using rapid prototyping |
| title_short | Patient specific ankle-foot orthoses using rapid prototyping |
| title_sort | patient specific ankle foot orthoses using rapid prototyping |
| url | http://hdl.handle.net/1721.1/70122 |
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