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Journal articles on the topic 'Knee prosthesis'

Author: Grafiati

Published: 4 June 2021

Last updated: 26 July 2025

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1

Jones, L. E. "Prosthetic limb use in Australia 1981-1985 under the Free Limb Scheme." Prosthetics and Orthotics International 13, no. 2 (1989): 76–81. http://dx.doi.org/10.3109/03093648909078216.

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A study has been made of data on 19,421 prosthetic limbs prescribed for 12,143 Australians under the Free Limb Scheme in the years 1981–1985. These prostheses consisted of 18,119 legs and 1,302 arms. The mean age of the lower limb prosthesis user was 52.8 and the upper limb prosthesis user 31.3 years. Males outnumbered females by 3 to 1 in the upper limb prosthesis users, and 2.8 to 1 with lower limb prosthesis users. Below-knee prostheses, patellar-tendon-bearing and thigh-lacing prostheses, made up 58.7% of all prostheses prescribed in the time span. Below-elbow prostheses were the commonest

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2

Bernal-Torres, Mario G., Hugo I. Medellín-Castillo, and Juan C. Arellano-González. "Design and Control of a New Biomimetic Transfemoral Knee Prosthesis Using an Echo-Control Scheme." Journal of Healthcare Engineering 2018 (2018): 1–16. http://dx.doi.org/10.1155/2018/8783642.

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Passive knee prostheses require a significant amount of additional metabolic energy to carry out a gait cycle, therefore affecting the natural human walk performance. Current active knee prostheses are still limited because they do not reply with accuracy of the natural human knee movement, and the time response is relatively large. This paper presents the design and control of a new biomimetic-controlled transfemoral knee prosthesis based on a polycentric-type mechanism. The aim was to develop a knee prosthesis able to provide additional power and to mimic with accuracy of the natural human k

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3

Eberly, Valerie J., Sara J. Mulroy, JoAnne K. Gronley, Jacquelin Perry, William J. Yule, and Judith M. Burnfield. "Impact of a stance phase microprocessor-controlled knee prosthesis on level walking in lower functioning individuals with a transfemoral amputation." Prosthetics and Orthotics International 38, no. 6 (2013): 447–55. http://dx.doi.org/10.1177/0309364613506912.

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Background: For individuals with transfemoral amputation, walking with a prosthesis presents challenges to stability and increases the demand on the hip of the prosthetic limb. Increasing age or comorbidities magnify these challenges. Computerized prosthetic knee joints improve stability and efficiency of gait, but are seldom prescribed for less physically capable walkers who may benefit from them. Objective: To compare level walking function while wearing a microprocessor-controlled knee (C-Leg Compact) prosthesis to a traditionally prescribed non-microprocessor-controlled knee prosthesis for

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Takahashi, Kota Z., John R. Horne, and Steven J. Stanhope. "Comparison of mechanical energy profiles of passive and active below-knee prostheses: A case study." Prosthetics and Orthotics International 39, no. 2 (2014): 150–56. http://dx.doi.org/10.1177/0309364613513298.

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Background: With the recent technological advancements of prosthetic lower limbs, there is currently a great desire to objectively evaluate existing prostheses. Using a novel biomechanical analysis, the purpose of this case study was to compare the mechanical energy profiles of anatomical and two disparate prostheses: a passive prosthesis and an active prosthesis. Case description and methods: An individual with a transtibial amputation who customarily wears a passive prosthesis (Elation, Össur) and an active prosthesis (BiOM, iWalk, Inc.) and 11 healthy subjects participated in an instrumente

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Kawamura, J., Y. Hayashi, T. Yoneda, et al. "Temporary above-knee prostheses and training programme during chemotherapy." Prosthetics and Orthotics International 9, no. 2 (1985): 87–91. http://dx.doi.org/10.3109/03093648509164711.

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A temporary prosthesis has been developed for above-knee amputees who receive long-term post-amputation chemotherapy. The temporary prosthesis has an adjustable laminated quadrilateral socket, the size of which is adjusted by metal screws. Fifteen patients were fitted with the temporary prosthesis. Initial fittings were carried out after a period averaging 46 days from amputation. All of the patients were able to walk with one crutch after about one month from initial fitting. Although patients often had to discontinue their prosthetic training owing to chemotherapy, they could resume wearing

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McGrath, Michael, Laura A. Gray, Beata Rek, et al. "Can microprocessor knees reduce the disparity in trips and falls risks between above and below knee prosthesis users?" PLOS ONE 17, no. 9 (2022): e0271315. http://dx.doi.org/10.1371/journal.pone.0271315.

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While all lower limb prosthesis walkers have a high risk of tripping and/or falling, above knee prosthesis users are reported to fall more frequently. Recognising this, engineers designed microprocessor knees (MPK) to help mitigate these risks, but to what extent these devices reduce this disparity between above and below knee users is unclear. A service review was carried out in a prosthetic limb centre regarding the frequency of trips and falls in the previous four weeks. Data from unilateral, community ambulators were extracted. Ordered logistic regressions were applied to investigate wheth

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7

Sun, Yuanxi, Hao Tang, Yuntao Tang, et al. "Review of Recent Progress in Robotic Knee Prosthesis Related Techniques: Structure, Actuation and Control." Journal of Bionic Engineering 18, no. 4 (2021): 764–85. http://dx.doi.org/10.1007/s42235-021-0065-4.

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AbstractAs the essential technology of human-robotics interactive wearable devices, the robotic knee prosthesis can provide above-knee amputations with functional knee compensations to realize their physical and psychological social regression. With the development of mechanical and mechatronic science and technology, the fully active knee prosthesis that can provide subjects with actuating torques has demonstrated a better wearing performance in slope walking and stair ascent when compared with the passive and the semi-active ones. Additionally, with intelligent human-robotics control strateg

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Rahmi, Diah, Jusuf Kristianto, and Agusni Karma. "COMPARISON OF ENERGY COST IN TRANSFEMORAL PROSTHESIS USERS USING MECHANICAL FOUR-BAR LINKAGE AND PNEUMATIC SYSTEM PROSTHETIC KNEE JOINTS." Journal of Prosthetics Orthotics and Science Technology 1, no. 1 (2022): 28–33. http://dx.doi.org/10.36082/jpost.v1i1.647.

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Background. The prosthetic knee joint is an essential component of the transfemoral prosthesis. Different types of knee joints are used in transfemoral prosthesis. The different features found in artificial knee joints affecting on different energy costs to prosthesis user during walking. The selection of prosthetic knee joints should be appropriate to the user's needs.Research purposes. To analyze and comparing two types of prosthetic knee joint four bar linkage mechanical and pneumatic system in minimize the energy cost during walking.Research methods. Quantitative descriptive. The participa

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9

Rasheed, Faiza, Suzanne Martin, and Kwong Ming Tse. "Design, Kinematics and Gait Analysis, of Prosthetic Knee Joints: A Systematic Review." Bioengineering 10, no. 7 (2023): 773. http://dx.doi.org/10.3390/bioengineering10070773.

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The aim of this review article is to appraise the design and functionality of above-knee prosthetic legs. So far, various transfemoral prosthetic legs are found to offer a stable gait to amputees but are limited to laboratories. The commercially available prosthetic legs are not reliable and comfortable enough to satisfy amputees. There is a dire need for creating a powered prosthetic knee joint that could address amputees’ requirements. To pinpoint the gap in transfemoral prosthetic legs, prosthetic knee unit model designs, control frameworks, kinematics, and gait evaluations are concentrated

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Wang, Xiaoming, Qiaoling Meng, Zhewen Zhang, Jinyue Sun, Jie Yang, and Hongliu Yu. "Design and evaluation of a hybrid passive–active knee prosthesis on energy consumption." Mechanical Sciences 11, no. 2 (2020): 425–36. http://dx.doi.org/10.5194/ms-11-425-2020.

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Abstract. The existing lower limb prostheses with passive knees have disadvantages, causing an asymmetric gait and higher metabolic cost during level walking which is in contrast with a normal gait. However, most existing active knee prostheses need a significant amount of energy. In this paper, a novel hybrid passive–active knee prosthesis (HPAK) that allows passive and active operating modes is proposed, which contains an active motor unit and a novel hydraulic damper with an electrically controlled valve that adjusts the damping torque dynamically during each gait cycle. An energy consumpti

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11

Balassa, Gábor Péter. "Development and Examination of a Knee Prosthesis Geometry." Műszaki Tudományos Közlemények 11, no. 1 (2019): 27–30. http://dx.doi.org/10.33894/mtk-2019.11.03.

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Abstract The necessity for the knee prosthesis is confirmed by the large increase in the number of patients suffering from arthrosis, which is a present-day disease. Despite this need, there doesn’t exist an optimal knee prosthesis. Nowadays the development of the knee prostheses is progressing. It is very difficult to define the required geometry with traditional methods, because the movement conditions to be created by the prostheses should be similar to the movements of the human knee. During previous research the biomechanical research team of the Szent István University occupied with expe

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12

Hagberg, E., Ö. K. Berlin, and P. Renström. "Function after through-knee compared with below-knee and above-knee amputation." Prosthetics and Orthotics International 16, no. 3 (1992): 168–73. http://dx.doi.org/10.3109/03093649209164336.

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Fifty-nine amuptees, 24 below-knee (BK), 17 through-knee (TK) and 18 above-knee (AK) who had prosthetic replacements, were evaluated using a questionnaire which provided a quantitative and qualitative assessment scale for the prosthetic function. The ability to apply or don the prosthesis was noted in 100% of the BK, 70% of the TK and 56% of the AK amputations (p < 0.001). Daily use of the prosthesis was recorded in 96% of the BK, 76% of the TK and 50% of the AK amputations (p < 0.001). A higher level of amputation resulted in a significantly lower degree of rehabilitation (p < 0.05).

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Lychagin, Alexey Vladimirovich, Andrey Anatolyevich Gritsyuk, Mikhail Pavlovich Elizarov, et al. "Short-Term Outcomes of Total Knee Arthroplasty Using a Conventional, Computer-Assisted, and Robotic Technique: A Pilot Clinical Trial." Journal of Clinical Medicine 13, no. 11 (2024): 3125. http://dx.doi.org/10.3390/jcm13113125.

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Background: Total Knee Arthroplasty (TKA) is a prevalent surgical procedure for treating severe knee arthritis, aiming to alleviate pain and restore function. Recent advancements have introduced computer-assisted (CAS) and robot-assisted (RA-TKA) surgical techniques as alternatives to conventional methods, promising improved accuracy and patient outcomes. However, comprehensive comparative studies evaluating the short-term outcomes and prostheses survivorship among these techniques are limited. We hypothesized that the outcome of RA-TKA and/or CAS- TKA is advantageous in function and prosthesi

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14

Isakov, E., J. Mizrahi, Z. Susak, and I. Onna. "A Swedish knee-cage for stabilizing short below-knee stumps." Prosthetics and Orthotics International 16, no. 2 (1992): 114–17. http://dx.doi.org/10.3109/03093649209164322.

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Stump length is an important factor in attaining successful prosthetic rehabilitation in below- knee (BK) amputees. Stability of the stump- prosthesis complex is impaired in the case of a stump shorter than 10 cm. Thus, fitting a prosthesis to a BK amputee with a stump which is very short often requires the use of different prosthetic techniques. In this work, the authors suggest the use of a Swedish knee-cage attached to a conventionai patellar-tendon-bearing prosthesis as an alternative solution in the case of a short BK stump. Objective evaluation was performed by an analysis of gait and th

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15

Prince, F., P. Allard, R. G. Therrien, and B. J. McFadyen. "Running gait impulse asymmetries in below-knee amputees." Prosthetics and Orthotics International 16, no. 1 (1992): 19–24. http://dx.doi.org/10.3109/03093649209164303.

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In running, large gait asymmetry is expected due to the inability of the foot prosthesis to comply with the kinematic demands and produce a powerful plantarflexion moment. In this work, interlimb asymmetry in below-knee (BK) amputee running gait was assessed for one rigid and three flexible keel prostheses, using vertical and anteroposterior ground reaction forces and respective impulses. Nine BK amputees and 6 controls participated in this study. The running speed was monitored by two light sensitive detectors while the ground reaction forces were measured with a Kistler force plate. Between

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16

Gebhard, M., D. Ackermann, U. Büll, B. Hermanns-Sachweh, T. Mumme, and S. Gravius. "Analysis of 18F-FDG uptake pattern in PET for diagnosis of aseptic loosening versus prosthesis infection after total knee arthroplasty." Nuklearmedizin 49, no. 03 (2010): 115–23. http://dx.doi.org/10.3413/nukmed-0278.

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SummaryThe aim of this prospective study was to identify a typical pattern for fluorodeoxyglucose (18F-FDG) uptake in positron emission tomography (PET) to differentiate aseptic loosening (tibial and / or femoral component) from prosthesis infection in painful knee prosthesis. Patients, methods: 20 patients with painful knee prosthesis underwent PET imaging to evaluate aseptic loosening / prosthesis infection of their knee prosthesis. The interface between bone and surrounding soft tissue or bone was divided into 3 segments each for both the femur and the tibia and in addition for 4 segments r

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17

Chand, N., R. K. Srivastava, and A. R. Maish. "Hanging stump prosthesis without socket for bad above-knee stumps." Prosthetics and Orthotics International 9, no. 3 (1985): 154–56. http://dx.doi.org/10.3109/03093648509164728.

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This prosthesis was developed in the Department of Rehabilitation, Safdarjang Hospital, New Delhi, India to deal with the problems of badly formed or difficult above-knee stumps. Bad stumps are still a challenge for the rehabilitation team due to the difficulty in fitting the prosthesis which is the first stage in the total rehabilitation of the amputee. It is the author's observation that those cases with bad above-knee stumps who are fitted with a prosthesis with some type of socket keep attending the prosthetic section complaining of pain. The pain in most of these cases is due to local con

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Ebied, Ayman M., Hany Elsayed, and Osama Gamal. "Sex-specific versus standard posterior cruciate-substituting total knee prosthesis." Egyptian Orthopaedic Journal 56, no. 2 (2021): 82–88. http://dx.doi.org/10.4103/eoj.eoj_67_21.

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Background The introduction of sex-specific (SS) knee prosthesis designs was an approach to offer more sizing options and is based on the anatomic sex differences. These SS components were though to provide better fitting to female femora and consequently improve the clinical outcome. Materials and methods In the period between February 2011 and March 2013, a prospective superiority randomized controlled clinical trial was conducted to compare the clinical outcome of SS versus the standard posterior stabilized (PS) knee prosthesis in women. The primary outcome measure was the postoperative ran

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Möller, Saffran, David Rusaw, Kerstin Hagberg, and Nerrolyn Ramstrand. "Reduced cortical brain activity with the use of microprocessor-controlled prosthetic knees during walking." Prosthetics and Orthotics International 43, no. 3 (2018): 257–65. http://dx.doi.org/10.1177/0309364618805260.

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Background: Individuals using a lower-limb prosthesis indicate that they need to concentrate on every step they take. Despite self-reports of increased cognitive demand, there is limited understanding of the link between cognitive processes and walking when using a lower-limb prosthesis. Objective: The objective was to assess cortical brain activity during level walking in individuals using different prosthetic knee components and compare them to healthy controls. It was hypothesized that the least activity would be observed in the healthy control group, followed by individuals using a micropr

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20

Karakaş, G., and S. Topuz. "AB0186 THE EFFECT OF KNEE JOINT LOSS ON PROSTHESIS AWARENESS IN LOWER LIMB AMPUTEES." Annals of the Rheumatic Diseases 82, Suppl 1 (2023): 1274.1–1274. http://dx.doi.org/10.1136/annrheumdis-2023-eular.4534.

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BackgroundIn knee disarticulation, transfemoral and hip disarticulation amputations, unlike transtibial amputations, the anatomical knee joint is replaced by a prosthetic knee joint. In amputations where the natural knee joint is not preserved, compared to transtibial amputations; It has been stated that it is difficult to reach the normal functional level and more energy is spent [1]. The closer the amputation level is to the proximal, the more restrictions the amputee has in activities of daily living [2].ObjectivesIn this study, we compared the ability of forgetting the prosthesis, which is

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Calafeteanu, Dan, Dan Tarnita, Marius Catana, Daniel Calin, and Daniela Tarniţă. "Influences of Antero-Posterior Tibial Slope on the Prosthetic Knee Contact Stresses." Applied Mechanics and Materials 823 (January 2016): 137–42. http://dx.doi.org/10.4028/www.scientific.net/amm.823.137.

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In this paper, using 3D finite element method and starting from the virtual model of the human knee joint-prosthesis assembly, we investigate the effects of antero-posterior tibial slope on contact stresses in the three components of total knee prosthesis. Using AnsysWorkbench15.07 software, the stress and displacements maps are obtained for knee-prosthesis assemblies and for their components, considering two loading force: 800N and 2400N and two cases of prosthetic knee varus slope: 176o and b) 191o. For each prosthesis-knee assembly and for each considered force, two variants of antero-poste

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Yan, Gongxing, Jialing Li, Hui Xie, and Minggui Zhou. "Adaptive Control System of Intelligent Lower Limb Prosthesis Based on 5G Virtual Reality." Wireless Communications and Mobile Computing 2022 (March 18, 2022): 1–12. http://dx.doi.org/10.1155/2022/4572503.

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With the rapid development of computer science and technology in our country, especially the advent of the 5G network era, the emergence of smart prostheses makes it possible for disabled, injured, or amputee people with lower limbs to walk and exercise like normal people. However, due to the different selection of prosthetic materials, the final lower limb prostheses produced will also have different performance differences. How to select prosthetic materials to optimize the performance of the intelligent lower limb prosthesis is the focus of extensive discussion in the medical community. For

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Mohamed, Abeer, Andrew Sexton, Kirsten Simonsen, and Chris A. McGibbon. "Development of a Mechanistic Hypothesis Linking Compensatory Biomechanics and Stepping Asymmetry during Gait of Transfemoral Amputees." Applied Bionics and Biomechanics 2019 (February 3, 2019): 1–15. http://dx.doi.org/10.1155/2019/4769242.

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Objective. Gait asymmetry is a common adaptation observed in lower-extremity amputees, but the underlying mechanisms that explain this gait behavior remain unclear for amputees that use above-knee prostheses. Our objective was to develop a working hypothesis to explain chronic stepping asymmetry in otherwise healthy amputees that use above-knee prostheses. Methods. Two amputees (both through-knee; one with microprocessor knee, one with hydraulic knee) and fourteen control subjects participated. 3D kinematics and kinetics were acquired at normal, fast, and slow walking speeds. Data were analyze

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Budaker, Bernhard, and Alexander Verl. "Design, Development and Realisation of an Active Driven Knee-Prosthesis with Bevel Helical Gearbox." Advanced Materials Research 907 (April 2014): 225–39. http://dx.doi.org/10.4028/www.scientific.net/amr.907.225.

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This paper presents the development of an active driven prosthesis for transfemoral amputees. At the beginning of the development process gait parameters are analyzed. Defined boundary conditions help to get the right technical parameters for a structured development process. During the following development process, different concepts for active driven knee prostheses are discussed. Essential components for active driven prosthesis systems are presented. The focus during the scientific work is the development of an active drive system for an active driven knee prosthesis. A first prototype of

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Huang, Chun-Hsiung, Cheng-Kung Cheng, Jiann-Jong Liau, and Ye-Ming Lee. "MORPHOMETRICAL COMPARISON BETWEEN THE RESECTED SURFACES IN OSTEOARTHRITIC KNEES AND POROUS-COATED ANATOMIC KNEE PROSTHESIS." Journal of Musculoskeletal Research 04, no. 01 (2000): 39–46. http://dx.doi.org/10.1142/s0218957700000069.

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In total knee replacement, a good match of the prosthesis to bone is very important. Most knees that require total knee replacement are deformed. However, most of the design parameters of knee prosthesis were based on the normal knee. In this series, the dimensions of the resected surfaces in 77 osteoarthritic knees were measured intraoperatively and compared with the corresponding surfaces of the porous-coated anatomic (PCA) (Howmedica, Rutherford, NJ, USA) knee prosthesis. The results showed that the medial femoral condyle was wider than the lateral femoral condyle (p < 0.05) in the resec

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Cherni, Yosra, Simon Laurendeau, Maxime Robert, and Katia Turcot. "The Influence of Transtibial Prosthesis Type on Lower-Body Gait Adaptation: A Case Study." International Journal of Environmental Research and Public Health 20, no. 1 (2022): 439. http://dx.doi.org/10.3390/ijerph20010439.

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Gait parameters are altered and asymmetrical in individuals with transtibial amputation. The purpose of this study was to evaluate and compare the effect of four different prosthetic feet on lower-limb biomechanics during gait. A 34-year-old man with transtibial amputation performed four gait analysis sessions with four foot–ankle prostheses (Variflex, Meridium, Echelon, and Kinterra). Kinematic and kinetic parameters and gait symmetry were analyzed in different prosthetic conditions. The type of prosthesis had little effect on the participant’s spatiotemporal parameters. Throughout the stance

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Weber, Patrick, Christian Schröder, Jens Schwiesau, et al. "Increase in the Tibial Slope Reduces Wear after Medial Unicompartmental Fixed-Bearing Arthroplasty of the Knee." BioMed Research International 2015 (2015): 1–7. http://dx.doi.org/10.1155/2015/736826.

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Introduction. Unicompartmental arthroplasty of the knee in patients with isolated medial osteoarthritis gives good results, but survival is inferior to that of total knee prosthesis. Knees may fail because positioning of the prosthesis has been suboptimal. The aim of this study was to investigate the influence of the tibial slope on the rate of wear of a medial fixed-bearing unicompartmental knee arthroplasty.Materials and Methods. We simulated wear on a medial fixed-bearing unicompartmental knee prosthesis (Univation) in vitro with a customised, four-station, and servohydraulic knee wear simu

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Nurisusilawati, Isnaini, and Muhammad Yusro. "Prosthesis Mapping and Forecasting as a Direction of Innovation in Prosthesis Product Development." OPSI 14, no. 1 (2021): 30. http://dx.doi.org/10.31315/opsi.v14i1.4579.

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The objective of this study is to make a need assessment in the form of identifying trends in the need for prostheses and mapping the priority types of prostheses developed at Dr. R. Soeharso Orthopedic Public Hospital, Surakarta as a reference for innovation in the development of prosthesis products at Dr. R. Soeharso Orthopedic Public Hospital, Surakarta. The method used was descriptive analysis and moving average forecasting of historical data on the use of prostheses. From the results of the descriptive analysis, it was found that the most common types of the prosthesis were under the knee

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Fuenzalida Squella, Sara Agueda, Andreas Kannenberg, and Ângelo Brandão Benetti. "Enhancement of a prosthetic knee with a microprocessor-controlled gait phase switch reduces falls and improves balance confidence and gait speed in community ambulators with unilateral transfemoral amputation." Prosthetics and Orthotics International 42, no. 2 (2017): 228–35. http://dx.doi.org/10.1177/0309364617716207.

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Background:Despite the evidence for improved safety and function of microprocessor stance and swing-controlled prosthetic knees, non-microprocessor-controlled prosthetic knees are still standard of care for persons with transfemoral amputations in most countries. Limited feature microprocessor-control enhancement of such knees could stand to significantly improve patient outcomes.Objectives:To evaluate gait speed, balance, and fall reduction benefits of the new 3E80 default stance hydraulic knee compared to standard non-microprocessor-controlled prosthetic knees.Study design:Comparative within

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Pongcharoen, Boonchana, Narong Tantarak, and Waroot Pholsawatchai. "Is standard total knee arthroplasty with lateral femoral overhanging a cause of anterior knee pain? A randomized controlled trial." SICOT-J 8 (2022): 3. http://dx.doi.org/10.1051/sicotj/2022003.

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Introduction: Anterior knee pain (AKP) may persist after total knee arthroplasty (TKA), even if well aligned and stable, and is reported in up to 30% of patients, leading to patient dissatisfaction. The gender-specific knee prostheses have been designed to reduce femoral component overhanging in females and improve patient satisfaction. The purpose of this study was to determine AKP between gender-specific knee prosthesis and unisex knee prosthesis following minimally invasive surgery (MIS) TKA with patellar resurfacing. Methods: This study was a randomized trial comparing a gender-specific vs

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Minnoye, Sander L. M., and Dick H. Plettenburg. "Design, Fabrication, and Preliminary Results of a Novel Below-Knee Prosthesis for Snowboarding: A Case Report." Prosthetics and Orthotics International 33, no. 3 (2009): 272–83. http://dx.doi.org/10.1080/03093640903089576.

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Snowboarding with a below-knee prosthesis is compromised by the limited rotation capabilities of the existing below-knee prostheses, which are designed for use in normal walking. Based on snowboarding range of motion analyses, a novel below-knee prosthesis was designed with the aim to achieve similar range of motions like able-bodied snowboarders. The new prosthesis allows for passive inversion/eversion, passive plantarflexion/dorsiflexion and additional ‘voluntary’ plantarflexion/dorsiflexion initiated by lateral or medial rotation of the upper leg and knee. A prototype was built and was subs

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Lestari, Firdha Alwani, Syifa Fauziah, and Atikah Adyas. "ANALYSIS TRANSTIBIAL PATIENT’S LEVEL OF KNOWLEDGE IN MAINTAINING THE HEALTH OF THE STUMP IN PROSTHETICS AND ORTHOTICS CLINIC POLYTECHNIC OF HEALTH JAKARTA 1." Journal of Prosthetics Orthotics and Science Technology 1, no. 2 (2022): 50–53. http://dx.doi.org/10.36082/jpost.v1i2.867.

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Below the knee amputation (transtibial) is the most common amputation (Vitriana, 2002). Prosthesis is a device that has a function to replace part of the body after amputation. Prosthesis is aimed to help patients in daily activities, especially walking. After giving the prosthesis, the patient is given an explanation of how to wash the stump and prosthesis correctly. Prosthetist also suggested that prosthesis should be washed every day when not being used. Based on the data of Prosthetic and Orthotic clinics report in 2013, the majority of patient knowledge in maintaining health of stump is s

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Eilenberg, Michael F., Ken Endo, and Hugh Herr. "Biomechanic and Energetic Effects of a Quasi-Passive Artificial Gastrocnemius on Transtibial Amputee Gait." Journal of Robotics 2018 (2018): 1–12. http://dx.doi.org/10.1155/2018/6756027.

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State-of-the-art transtibial prostheses provide only ankle joint actuation and thus do not provide the biarticular function of the amputated gastrocnemius muscle. We develop a prosthesis that actuates both knee and ankle joints and then evaluate the incremental effects of this prosthesis as compared to ankle actuation alone. The prosthesis employs a quasi-passive clutched-spring knee orthosis, approximating the largely isometric behavior of the biological gastrocnemius, and utilizes a commercial powered ankle-foot prosthesis for ankle joint functionality. Two participants with unilateral trans

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Zhang, Hao-ran. "Application and Development of Megaprostheses in Limb Salvage for Bone Tumors Around the Knee Joint." Cancer Control 29 (January 2022): 107327482210992. http://dx.doi.org/10.1177/10732748221099219.

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In recent decades, limb-salvage surgery has replaced amputation as the first choice for the treatment of bone tumors around knee. After tumor resection, there are a variety of reconstruction methods for us to choose, including autograft or allograft, inactivation and reimplantation, artificial prosthesis replacement, and allograft-prosthesis compound reconstruction. Compared with other reconstruction methods, artificial prosthesis reconstruction has some advantages: relatively simple, early weight bearing, fewer early complications, and good function in the early and mid-term follow-up. After

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Deepak, Rohella, Kumar Behera Ananda, Sahu Harekrushna, et al. "Comparison of Fixed-Bearing Prosthesis vs. Mobile-Bearing Prosthesis in Total Knee Arthroplasty among Indian Patients." International Journal of Pharmaceutical and Clinical Research 14, no. 8 (2022): 7–12. https://doi.org/10.5281/zenodo.13345241.

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<strong>Background:</strong> It has been claimed that mobile-bearing knee prostheses achieve more flexion in laboratory testing and may provide a better functional outcome in patients than traditional fixed-bearing knee prostheses. <strong>Aim:</strong> To assess the mid-term clinical results of total knee arthroplasty (TKA) in Indian patients using a fixed- or mobile-bearing prosthesis. <strong>Methods:</strong> 120 patients (50 men and 70 women) with arthritis of the knee with similar deformities and range of motion were randomly assigned to have TKA with a fixed- or

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Ramstrand, Nerrolyn, David F. Rusaw, and Saffran Filippa Möller. "Transitioning to a microprocessor-controlled prosthetic knee: Executive functioning during single and dual-task gait." Prosthetics and Orthotics International 44, no. 1 (2019): 27–35. http://dx.doi.org/10.1177/0309364619892773.

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Background: Walking with a prosthesis requires substantial concentration on behalf of the user and places increased demands on executive functions. Little is known of the effects that prosthetic knee joint prescription may have on executive functioning. Objectives: Evaluate executive functioning in trans-femoral prosthesis users during single and dual-task walking, before and after they transition to a Microprocessor-controlled prosthetic knee unit. Study Design: Multiple case-study design. Methods: Single and dual task gait was evaluated while recording cortical brain activity. Testing occasi

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Kijkusol, D. "Simplified, low cost below-knee prosthesis." Prosthetics and Orthotics International 10, no. 2 (1986): 96–98. http://dx.doi.org/10.3109/03093648609164507.

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Problems are encountered in using standard prostheses in developing countries, especially when the prostheses need repair and the amputees cannot come back to the workshop. Very simple, low cost and durable prostheses can solve this problem. The solution described has worked well with villagers in some rural areas of Thailand, where the inexpensive prosthesis permits walking bare-foot and through water and mud.

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Bosman, Charlotte E., Corry K. van der Sluis, Jan H. B. Geertzen, Nienke Kerver, and Aline H. Vrieling. "User-relevant factors influencing the prosthesis use of persons with a transfemoral amputation or knee-disarticulation: A meta-synthesis of qualitative literature and focus group results." PLOS ONE 18, no. 1 (2023): e0276874. http://dx.doi.org/10.1371/journal.pone.0276874.

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Objective Persons with a transfemoral amputation or knee-disarticulation are heavily reliant on an adequate set of components for their prosthesis. To improve the process of adjusting the specific prosthetic properties to the expectations of the prosthesis users, it is of importance to first identify which factors have an influence on prosthesis use. Therefore, we aimed to identify factors that influence prosthesis use in adults with a transfemoral amputation or knee-disarticulation. Methods A qualitative meta-synthesis was conducted by searching five databases (last update January 20th 2022).

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Arias de la Torre, Jorge, Olga Martínez, Kayla Smith, et al. "PP70 Identification Of Prostheses With Worse Than Expected Outcomes." International Journal of Technology Assessment in Health Care 35, S1 (2019): 51. http://dx.doi.org/10.1017/s0266462319002198.

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IntroductionMonitoring the effectiveness of knee and hip arthroplasties could be useful at the clinical, economic, and patient levels. In Catalonia, there is currently no systematic monitoring of the different prostheses available. The aims of this study were to propose an approach for the systematic identification of knee and hip prostheses with the highest revision rates, and to identify those with the poorest outcomes.MethodsData recorded from January 2005 to December 2016 were considered from 53 out of the 61 public hospitals in Catalonia included in the Catalonian Arthroplasty Register (R

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Alayane, Ali, Mohamad K. Moussa, Mohammad O. Boushnak, Issam Boulazaib, and Nicolas Nicolas. "Septic Metallosis after Unicompartmental Knee Replacement: A Case Report and Literature Review." Journal of Orthopaedic Case Reports 13, no. 6 (2023): 11–15. http://dx.doi.org/10.13107/jocr.2023.v13.i06.3676.

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Introduction: Metallosis following prosthetic hip and knee replacement is a well-known complication. However, unicompartmental knee arthroplasty (UKA) metallosis is rare. In this paper, we report a case of septic metallosis after unicompartmental knee replacement and we review the literature for the available treatment options. Case Report: A 83-year-old female patient presented with left periprosthetic knee infection on the top of unicompartmental knee prosthesis three months after septic endocarditis that was treated with anti-biotherapy. Surgical exploration showed severe infected metallosi

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Chakraborty, J. K., and K. M. Patil. "A new modular six-bar linkage trans-femoral prosthesis for walking and squatting." Prosthetics and Orthotics International 18, no. 2 (1994): 98–108. http://dx.doi.org/10.3109/03093649409164391.

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Four-bar linkage mechanisms produced by many designers of knee joints for trans-femoral prostheses can provide knee rotation to permit walking only. In Afro-Asian countries people are accustomed to a squatting posture in their daily activities. A six-bar linkage knee-ankle mechanism trans-femoral prosthesis is described which was developed and fitted to an amputee. The motion patterns of the ankle, knee and thigh during walking and squatting (obtained using a flickering light emitting diode system) for the above prosthesis is compared with motion patterns obtained for normal subjects. The clos

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Ko, Sang Hyun, and Kyoung Ho Moon. "Comparison of the Clinical Results of Identically Designed Total Knee Prostheses with Different Surface Roughnesses." Coatings 10, no. 5 (2020): 486. http://dx.doi.org/10.3390/coatings10050486.

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The purpose of this study was to investigate the effects of the undersurface roughness of total knee prosthesis on clinical outcomes. We compared the clinical and radiological outcomes and prosthesis survivals in patients who underwent total knee arthroplasty using prosthesis with identical designs but different surface roughness (average surface roughnesses (Ra), 5.0 μm vs. 11.6 μm). The results showed that the knee prostheses with a more roughened undersurface (Ra = 11.6 μm) produced significantly better functional results and enhanced prosthesis survival. The difference in surface roughness

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Mohd Anuar, Mohd Afzan, Mitsugu Todo, Ryuji Nagamine, and Shunji Hirokawa. "Dynamic Finite Element Analysis of Mobile Bearing Type Knee Prosthesis under Deep Flexional Motion." Scientific World Journal 2014 (2014): 1–6. http://dx.doi.org/10.1155/2014/586921.

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The primary objective of this study is to distinguish between mobile bearing and fixed bearing posterior stabilized knee prostheses in the mechanics performance using the finite element simulation. Quantifying the relative mechanics attributes and survivorship between the mobile bearing and the fixed bearing prosthesis remains in investigation among researchers. In the present study, 3-dimensional computational model of a clinically used mobile bearing PS type knee prosthesis was utilized to develop a finite element and dynamic simulation model. Combination of displacement and force driven kne

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Liu, Ming, Philip Datseris, and He Helen Huang. "A Prototype for Smart Prosthetic Legs-Analysis and Mechanical Design." Advanced Materials Research 403-408 (November 2011): 1999–2006. http://dx.doi.org/10.4028/www.scientific.net/amr.403-408.1999.

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In this paper, we designed a prototype of powered above-knee prosthesis. Compared with other prototypes available in the literature, our designed prosthetic leg employs a redundant actuator concept to overcome the challenge faced by the single-motor transmission systems. The redundant actuator also enables the prosthesis to be partially functional when the prosthesis loses power. Finally, in order to provide optimal control parameters for designed above-knee prosthesis to perform a smooth level-ground walking task, an inverse dynamic model based on Kane’s method is constructed.

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Tarniţă, Daniela, Dan Calafeteanu, Marius Catana, Ionut Geonea, and Dan Tarnita. "Development of a Three-Dimensional Finite Element Knee Prosthesis Model." Applied Mechanics and Materials 822 (January 2016): 150–55. http://dx.doi.org/10.4028/www.scientific.net/amm.822.150.

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This paper presents the three-dimensional geometric modeling of the knee prosthesis components using the latest generation of CAD-CAE applications as DesignModeler and SpaceClaim under Ansys Workbench software package. The mesh generation and the contact conditions are presented. The parameterized virtual models of the knee prosthesis allow different changes in shape or dimensions which can lead to the optimization of the implant and of the biomechanics of the prosthetic knee.

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Ozyalcin, H., and E. Sesli. "Temporary prosthetic fitting for below-knee amputation." Prosthetics and Orthotics International 13, no. 2 (1989): 86–89. http://dx.doi.org/10.3109/03093648909078218.

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The problems encountered in fitting and using the permanent below-knee prosthesis in developing countries are the high price of the prosthesis, inadequate fitting and lack of proper rehabilitation. In Turkey, the preferred treatment of the stump post-operatively is by the soft dressing method with bandaging for maturation and shrinkage. Generally, the application of the permanent prosthesis is in the sixth month post-operatively. Since in patellar-tendon-bearing (PTB) sockets, stumps have to withstand high pressures in limited areas, the PTB socket can only tolerate small volume changes in the

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Miguel Cely, Luis, and Cesar Hernando Rocha. "Rotating-Hinge Total Knee Arthroplasty: Clinical and Radiographic Results from a Medium-Term, Multi-Center Study in a Latin American Population." SVOA Orthopaedics 4, no. 4 (2024): 96–102. http://dx.doi.org/10.58624/svoaor.2024.04.077.

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Background: Hinged prostheses are a good choice in the setting of complex knee arthroplasty. Nevertheless, the results could be different in the Latin-American people. Methods: A retrospective follow-up was performed. Seventy-six patients underwent pTKA using hinged prosthesis from 2012 to 2017. Survival analysis was performed with the Kaplan-Meier method. Functional results were assessed using Oxford Knee Score (OKS), OKS-APQ (Activity and Participation Questionnaire) and KOOS-12. Radiologic assessment was performed at each follow-up. In all the surgeries the rotating-hinge prosthesis solved

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Khoo, L. P., J. C. H. Goh, and S. L. Chow. "Parametric Modelling of a Knee Joint Prosthesis." Proceedings of the Institution of Mechanical Engineers, Part H: Journal of Engineering in Medicine 207, no. 2 (1993): 115–20. http://dx.doi.org/10.1243/pime_proc_1993_207_279_02.

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This paper presents an approach for the establishment of a parametric model of knee joint prosthesis. Four different sizes of a commercial prosthesis are used as an example in the study. A reverse engineering technique was employed to reconstruct the prosthesis on CATIA, a CAD (computer aided design) system. Parametric models were established as a result of the analysis. Using the parametric model established and the knee data obtained from a clinical study on 21 pairs of cadaveric Asian knees, the development of a prototype prosthesis that suits a patient with a very small knee joint is prese

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Shin, Hyunjun, Jinkuk Park, Huitae Lee, Sungyoon Jung, Mankee Jeon, and Sehoon Park. "Selective Passive/Active Switchable Knee Prosthesis Based on Multifunctional Rotary Hydraulic Cylinder for Transfemoral Amputees." Actuators 12, no. 3 (2023): 118. http://dx.doi.org/10.3390/act12030118.

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Significant advances have been made in prostheses with the aim of enhancing the quality of life for transfemoral amputees. While commercially available transfemoral prostheses mainly focus on the developing passive prostheses that act only as dampers, academic research is centered round powered prostheses that can provide net-positive knee torque. Although recent active-powered prostheses have made excellent progress in terms of weight and battery life, it remains unclear if these prostheses can be effectively used in everyday life. This study presents a rotary hybrid prosthesis based on the c

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Requena, Christelle, Joseph Bascou, Isabelle Loiret, et al. "Effectiveness of a New Microprocessor-Controlled Knee–Ankle–Foot System for Transfemoral Amputees: A Randomized Controlled Trial." Prosthesis 6, no. 6 (2024): 1591–606. https://doi.org/10.3390/prosthesis6060115.

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Background: Advances in prosthetic technology, especially microprocessor-controlled knees (MPKs), have helped enhance gait symmetry and reduce fall risks for individuals who have undergone transfemoral amputation. However, challenges remain in walking in constrained situations due to the limitations of passive prosthetic feet, lacking ankle mobility. This study investigates the benefits of SYNSYS®, a new microprocessor-controlled knee–ankle–foot system (MPKA_NEW), designed to synergize knee and ankle movements. Methods: A randomized crossover trial was conducted on 12 male participants who had

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