DEVELOPMENT AND EVALUATION OF AN ANTERIORLY MOUNTED MICROPROCESSOR-CONTROLLED POWERED HIP JOINT PROSTHESIS
BACKGROUND: Prosthetic solutions for individuals with hip disarticulation and hemipelvectomy amputations currently rely exclusively on passive hip joint mechanisms. Although powered knee and ankle joint prostheses have improved gait in people with amputation, no powered hip joint options are commer...
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Canadian Online Publication Group (COPG)
2025-02-01
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| Series: | Canadian Prosthetics & Orthotics Journal |
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| Online Access: | https://jps.library.utoronto.ca/index.php/cpoj/article/view/44494 |
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| author | Kelly Brannen Natalie Baddour Lucas Cho David Langlois Patrick Dumond Edward Lemaire |
| author_facet | Kelly Brannen Natalie Baddour Lucas Cho David Langlois Patrick Dumond Edward Lemaire |
| author_sort | Kelly Brannen |
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BACKGROUND: Prosthetic solutions for individuals with hip disarticulation and hemipelvectomy amputations currently rely exclusively on passive hip joint mechanisms. Although powered knee and ankle joint prostheses have improved gait in people with amputation, no powered hip joint options are commercially available.
OBJECTIVE: To develop and validate the mechanism, structural integrity, and design of an anteriorly mounted powered hip joint prosthesis.
METHODOLOGY: A microprocessor-controlled powered hip joint prosthesis (PHP) was developed, incorporating a cable-and-pulley transmission system. Stress calculations and Finite Element Analysis (FEA) were performed to ensure that the device can withstand the forces from daily activities. The prototype underwent mechanical strength testing in accordance with International Organization for Standardization (ISO) 15032:2000 standards, ensuring suitability for user loads of up to 100 kg. For functional testing, three able-bodied individuals were video recorded while walking with the power hip in a prosthesis simulator. For each participant, hip angles and stride parameters during level walking were assessed by analyzing five gait cycles.
FINDINGS: The novel PHP met most of the design criteria; however, it protruded 56 mm anteriorly from the lamination plate, exceeding the specified criterion of 20 mm. The joint's range of motion included 22° of extension and 145° of flexion. The joint prototype's height was 347 mm, and it weighed 3.9 kg. Furthermore, it passed ISO 15032:2000 strength tests, withstanding a 3360 Newton (N) load without failure. The device successfully enabled able-bodied individuals to walk using a hip disarticulation simulator and supported a 98 kg user during level walking.
CONCLUSION: The microprocessor-controlled PHP exhibited successful performance in both mechanical strength and functional testing. Future work is needed to optimize and assess the design, which could reduce the device's weight and size. A complex control system to adjust gait based on pelvic motion is currently under development.
Layman's Abstract
Currently, prosthetic solutions for people with hip disarticulation and hemipelvectomy amputation rely solely on passive prosthetic hip joints. While powered knee and ankle joints prostheses can improve gait, there are no powered hip joints prostheses available on the market. This study introduced and evaluated a powered hip joint prosthesis with a cable-and-pulley transmission system. The powered hip joint prosthesis met most of the design criteria and has range of motion of 22° of extension and 145° of flexion. The heigh of the joint was 347 mm, and it weighed 3.9 kg. Furthermore, it passed the strength tests, withstanding a 3360 Newton (N) load without failure. To evaluate the joint's performance, testing was conducted with three able-bodied individuals using a prosthesis simulator during level walking. This joint successfully enabled able-bodied individuals to walk and supported a 98 kg user during level walking. Future work is needed to optimize and assess the design, to reduce the device's weight and size. Furthermore, a control system to improve movement and function is needed and is currently under development.
Article PDF Link: https://jps.library.utoronto.ca/index.php/cpoj/article/view/44494/33657
How To Cite: Brannen K, Baddour N, Cho L, Langlois D, Dumond P, Lemaire E.D. Development and evaluation of an anteriorly mounted microprocessor-controlled powered hip joint prosthesis. Canadian Prosthetics & Orthotics Journal. 2024; Volume 7, Issue 2, No. 7. https://doi.org/10.33137/cpoj.v7i1.44494
Corresponding Author: Professor Edward Lemaire, PhD
Affiliation: Department of Medicine, Faculty of Medicine, University of Ottawa, Ottawa, Canada.
E-Mail: elemaire@uottawa.ca
ORCID ID: https://orcid.org/0000-0003-4693-2623
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| format | Article |
| id | doaj-art-2a5bd75eb952445e9b720ef062a5ebab |
| institution | Kabale University |
| issn | 2561-987X |
| language | English |
| publishDate | 2025-02-01 |
| publisher | Canadian Online Publication Group (COPG) |
| record_format | Article |
| series | Canadian Prosthetics & Orthotics Journal |
| spelling | doaj-art-2a5bd75eb952445e9b720ef062a5ebab2025-02-07T14:12:40ZengCanadian Online Publication Group (COPG)Canadian Prosthetics & Orthotics Journal2561-987X2025-02-017210.33137/cpoj.v7i2.44494DEVELOPMENT AND EVALUATION OF AN ANTERIORLY MOUNTED MICROPROCESSOR-CONTROLLED POWERED HIP JOINT PROSTHESISKelly Brannen0Natalie Baddour1https://orcid.org/0000-0002-7025-7501Lucas Cho2https://orcid.org/0009-0008-3596-4025David Langlois3https://orcid.org/0009-0002-8362-0696Patrick Dumond4Edward Lemaire5https://orcid.org/0000-0003-4693-2623Department of Mechanical Engineering, Faculty of Engineering, University of Ottawa, Ottawa, Canada.Department of Mechanical Engineering, Faculty of Engineering, University of Ottawa, Ottawa, Canada.Department of Mechanical Engineering, Faculty of Engineering, University of Ottawa, Ottawa, Canada.Össur, Grjothals 1-5, 110 Reykjavik, Iceland.Department of Mechanical Engineering, Faculty of Engineering, University of Ottawa, Ottawa, Canada.1) Department of Medicine, Faculty of Medicine, University of Ottawa, Ottawa, Canada; 2) Center for Rehabilitation Research and Development, Ottawa Hospital Research Institute, Ottawa, Canada. BACKGROUND: Prosthetic solutions for individuals with hip disarticulation and hemipelvectomy amputations currently rely exclusively on passive hip joint mechanisms. Although powered knee and ankle joint prostheses have improved gait in people with amputation, no powered hip joint options are commercially available. OBJECTIVE: To develop and validate the mechanism, structural integrity, and design of an anteriorly mounted powered hip joint prosthesis. METHODOLOGY: A microprocessor-controlled powered hip joint prosthesis (PHP) was developed, incorporating a cable-and-pulley transmission system. Stress calculations and Finite Element Analysis (FEA) were performed to ensure that the device can withstand the forces from daily activities. The prototype underwent mechanical strength testing in accordance with International Organization for Standardization (ISO) 15032:2000 standards, ensuring suitability for user loads of up to 100 kg. For functional testing, three able-bodied individuals were video recorded while walking with the power hip in a prosthesis simulator. For each participant, hip angles and stride parameters during level walking were assessed by analyzing five gait cycles. FINDINGS: The novel PHP met most of the design criteria; however, it protruded 56 mm anteriorly from the lamination plate, exceeding the specified criterion of 20 mm. The joint's range of motion included 22° of extension and 145° of flexion. The joint prototype's height was 347 mm, and it weighed 3.9 kg. Furthermore, it passed ISO 15032:2000 strength tests, withstanding a 3360 Newton (N) load without failure. The device successfully enabled able-bodied individuals to walk using a hip disarticulation simulator and supported a 98 kg user during level walking. CONCLUSION: The microprocessor-controlled PHP exhibited successful performance in both mechanical strength and functional testing. Future work is needed to optimize and assess the design, which could reduce the device's weight and size. A complex control system to adjust gait based on pelvic motion is currently under development. Layman's Abstract Currently, prosthetic solutions for people with hip disarticulation and hemipelvectomy amputation rely solely on passive prosthetic hip joints. While powered knee and ankle joints prostheses can improve gait, there are no powered hip joints prostheses available on the market. This study introduced and evaluated a powered hip joint prosthesis with a cable-and-pulley transmission system. The powered hip joint prosthesis met most of the design criteria and has range of motion of 22° of extension and 145° of flexion. The heigh of the joint was 347 mm, and it weighed 3.9 kg. Furthermore, it passed the strength tests, withstanding a 3360 Newton (N) load without failure. To evaluate the joint's performance, testing was conducted with three able-bodied individuals using a prosthesis simulator during level walking. This joint successfully enabled able-bodied individuals to walk and supported a 98 kg user during level walking. Future work is needed to optimize and assess the design, to reduce the device's weight and size. Furthermore, a control system to improve movement and function is needed and is currently under development. Article PDF Link: https://jps.library.utoronto.ca/index.php/cpoj/article/view/44494/33657 How To Cite: Brannen K, Baddour N, Cho L, Langlois D, Dumond P, Lemaire E.D. Development and evaluation of an anteriorly mounted microprocessor-controlled powered hip joint prosthesis. Canadian Prosthetics & Orthotics Journal. 2024; Volume 7, Issue 2, No. 7. https://doi.org/10.33137/cpoj.v7i1.44494 Corresponding Author: Professor Edward Lemaire, PhD Affiliation: Department of Medicine, Faculty of Medicine, University of Ottawa, Ottawa, Canada. E-Mail: elemaire@uottawa.ca ORCID ID: https://orcid.org/0000-0003-4693-2623 https://jps.library.utoronto.ca/index.php/cpoj/article/view/44494Microprocessor-Controlled ProsthesisHip DisarticulationPowered Hip JointHemipelvectomyProsthesis DesignAmputation |
| spellingShingle | Kelly Brannen Natalie Baddour Lucas Cho David Langlois Patrick Dumond Edward Lemaire DEVELOPMENT AND EVALUATION OF AN ANTERIORLY MOUNTED MICROPROCESSOR-CONTROLLED POWERED HIP JOINT PROSTHESIS Canadian Prosthetics & Orthotics Journal Microprocessor-Controlled Prosthesis Hip Disarticulation Powered Hip Joint Hemipelvectomy Prosthesis Design Amputation |
| title | DEVELOPMENT AND EVALUATION OF AN ANTERIORLY MOUNTED MICROPROCESSOR-CONTROLLED POWERED HIP JOINT PROSTHESIS |
| title_full | DEVELOPMENT AND EVALUATION OF AN ANTERIORLY MOUNTED MICROPROCESSOR-CONTROLLED POWERED HIP JOINT PROSTHESIS |
| title_fullStr | DEVELOPMENT AND EVALUATION OF AN ANTERIORLY MOUNTED MICROPROCESSOR-CONTROLLED POWERED HIP JOINT PROSTHESIS |
| title_full_unstemmed | DEVELOPMENT AND EVALUATION OF AN ANTERIORLY MOUNTED MICROPROCESSOR-CONTROLLED POWERED HIP JOINT PROSTHESIS |
| title_short | DEVELOPMENT AND EVALUATION OF AN ANTERIORLY MOUNTED MICROPROCESSOR-CONTROLLED POWERED HIP JOINT PROSTHESIS |
| title_sort | development and evaluation of an anteriorly mounted microprocessor controlled powered hip joint prosthesis |
| topic | Microprocessor-Controlled Prosthesis Hip Disarticulation Powered Hip Joint Hemipelvectomy Prosthesis Design Amputation |
| url | https://jps.library.utoronto.ca/index.php/cpoj/article/view/44494 |
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