Sudip Hazra, Abdul Hafiz Abdul Rahaman, P. Shiakolas
Due to mobility impairment, a person might rely on wheelchairs, canes, and crutches for assistance but could face challenges when performing tasks such as grasping and manipulating objects due to limitations in reach and capability. To overcome these challenges, a multi-degree-of-freedom robotic arm with an anthropomorphic robotic hand (ARH) could be used. In this research, we propose an architecture and then implement it towards the development of an assistive system to assist a person with object grasping. The architecture interlinks three functional modules to provide three operation modes to calibrate the system, train a user on how to execute a grasp, synthesize grasps, and execute a grasp. The developed system consists of a user input and feedback glove capable of capturing user inputs and providing grasp-related vibrotactile feedback, a CoppeliaSim-based virtual environment emulating the motions of the ARH, and an underactuated ARH capable of executing grasps while sensing grasp contact locations. The operation of the developed system is evaluated to determine the ability of a person to operate it and perform a grasp using two control methods; using a synthesized grasp or under real-time continuous control. The successful evaluation validates the architecture and the developed system to provide the ability to perform a grasp. The results of the evaluation provide confidence in expanding the system capabilities and use it to develop a database of grasp trajectories of objects with different geometries.
{"title":"An Affordable Telerobotic System Architecture for Grasp Training and Object Grasping for Human-machine Interaction","authors":"Sudip Hazra, Abdul Hafiz Abdul Rahaman, P. Shiakolas","doi":"10.1115/1.4063072","DOIUrl":"https://doi.org/10.1115/1.4063072","url":null,"abstract":"\u0000 Due to mobility impairment, a person might rely on wheelchairs, canes, and crutches for assistance but could face challenges when performing tasks such as grasping and manipulating objects due to limitations in reach and capability. To overcome these challenges, a multi-degree-of-freedom robotic arm with an anthropomorphic robotic hand (ARH) could be used. In this research, we propose an architecture and then implement it towards the development of an assistive system to assist a person with object grasping. The architecture interlinks three functional modules to provide three operation modes to calibrate the system, train a user on how to execute a grasp, synthesize grasps, and execute a grasp. The developed system consists of a user input and feedback glove capable of capturing user inputs and providing grasp-related vibrotactile feedback, a CoppeliaSim-based virtual environment emulating the motions of the ARH, and an underactuated ARH capable of executing grasps while sensing grasp contact locations. The operation of the developed system is evaluated to determine the ability of a person to operate it and perform a grasp using two control methods; using a synthesized grasp or under real-time continuous control. The successful evaluation validates the architecture and the developed system to provide the ability to perform a grasp. The results of the evaluation provide confidence in expanding the system capabilities and use it to develop a database of grasp trajectories of objects with different geometries.","PeriodicalId":73734,"journal":{"name":"Journal of engineering and science in medical diagnostics and therapy","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76084890","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
An approach is presented for calculation verification of geometry-based and voxel-based finite element modeling techniques used for biological hard tissue. The purpose of this study is to offer a controlled comparison of geometry- and voxel-based finite element modeling in terms of the convergence (i.e., discretization based on mesh size and/or element order), accuracy, and computational speed in modeling biological hard tissues. All of the geometry-based numerical test models have hp-converged at an acceptable mesh seed length of 0.6mm, while not all voxel-based models exhibited convergence and no voxel models p-converged. Converged geometry-based meshes were found to offer accurate solutions of the deformed model shape and equivalent vertebral stiffness, while voxel-based models were 6.35%±0.84% less stiff (p<0.0001) and deformed 6.79%±0.96% more (p<0.0001). Based on the controlled verification study results, the voxel-based models must be confirmed with local values and validation of quantities of interest to ensure accurate finite element model predictions.
{"title":"Verification Process for Finite Element Modeling Techniques Used in Biological Hard Tissue","authors":"Molly Townsend, Matthew Mills, N. Sarigul-Klijn","doi":"10.1115/1.4063302","DOIUrl":"https://doi.org/10.1115/1.4063302","url":null,"abstract":"\u0000 An approach is presented for calculation verification of geometry-based and voxel-based finite element modeling techniques used for biological hard tissue. The purpose of this study is to offer a controlled comparison of geometry- and voxel-based finite element modeling in terms of the convergence (i.e., discretization based on mesh size and/or element order), accuracy, and computational speed in modeling biological hard tissues. All of the geometry-based numerical test models have hp-converged at an acceptable mesh seed length of 0.6mm, while not all voxel-based models exhibited convergence and no voxel models p-converged. Converged geometry-based meshes were found to offer accurate solutions of the deformed model shape and equivalent vertebral stiffness, while voxel-based models were 6.35%±0.84% less stiff (p<0.0001) and deformed 6.79%±0.96% more (p<0.0001). Based on the controlled verification study results, the voxel-based models must be confirmed with local values and validation of quantities of interest to ensure accurate finite element model predictions.","PeriodicalId":73734,"journal":{"name":"Journal of engineering and science in medical diagnostics and therapy","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90500146","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Minimally invasive biopsy needles are frequently inserted into the desired body regions while performing the bone marrow biopsy (BMB) procedure. The key problem with needle insertion in tissues is that the insertion force damages the tissue and deviates the needle path, leading the needle to miss the desired target and reducing biopsy sample integrity. To address these shortcomings, the present work developed a unique bioinspired barbed biopsy needle design that reduces insertion/extraction forces and needle deflection. This study established several design parameters, including barb geometry and shape (viz., the height of barb, barbed front angle, barbed back angle, and length of portion containing barbs), and examined the impact of these factors on insertion/extraction force and deflection. A Lagrangian surface-based non-linear finite element (FE) approach has been used to numerically simulate the BMB procedure on a three-dimensional (3D) multilayered heterogeneous model of the human iliac crest. The proposed honeybee stinger-inspired needle design has been found to reduce both insertion and extraction forces because of the decreased frictional surface of the biopsy needle.
{"title":"Development of a Multilayer Iliac Crest Numerical Model for Simulating Honeybee Stinger-Inspired Hollow Needle Insertion","authors":"R. Nadda, R. Repaka, A. Sahani","doi":"10.1115/1.4063054","DOIUrl":"https://doi.org/10.1115/1.4063054","url":null,"abstract":"\u0000 Minimally invasive biopsy needles are frequently inserted into the desired body regions while performing the bone marrow biopsy (BMB) procedure. The key problem with needle insertion in tissues is that the insertion force damages the tissue and deviates the needle path, leading the needle to miss the desired target and reducing biopsy sample integrity. To address these shortcomings, the present work developed a unique bioinspired barbed biopsy needle design that reduces insertion/extraction forces and needle deflection. This study established several design parameters, including barb geometry and shape (viz., the height of barb, barbed front angle, barbed back angle, and length of portion containing barbs), and examined the impact of these factors on insertion/extraction force and deflection. A Lagrangian surface-based non-linear finite element (FE) approach has been used to numerically simulate the BMB procedure on a three-dimensional (3D) multilayered heterogeneous model of the human iliac crest. The proposed honeybee stinger-inspired needle design has been found to reduce both insertion and extraction forces because of the decreased frictional surface of the biopsy needle.","PeriodicalId":73734,"journal":{"name":"Journal of engineering and science in medical diagnostics and therapy","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-07-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89391819","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Temporomandibular joint (TMJ) is a synovial joint that allows for movement of the jaw in relation to the skull. TMJs are located on both sides of the face, one on either side. It aids in performing of activities such as eating. TMJ disorder may sometime require an implant to replace this joint. Excessive stress on certain screws and implants may adversely affect the TMJ implant and may lead to breakage and requirement of replacement. Therefore, to predict stresses in the implant, finite element analysis (FEA) has been used in this study. We have simulated a human bite by applying force to the teeth and allowing the condyle to rotate and translate over the fossa with the restrictions on the rigid body motions coming from flexible muscles which are modelled as axial connector elements. This method is novel because it eliminates the need to collect data on muscle forces in order to simulate the TMJ as was done conventionally. Each individual mandibular tooth can be loaded in this simulation. Because of the reduced amount of restriction placed on the TMJ implant, it is possible to better understand the true stresses that will be generated under the routine movement of the jaw.
{"title":"Finite Element Analysis of a Temporomandibular Joint Implant","authors":"Vivek Kumar Mall, P. Wahi, Niraj Sinha","doi":"10.1115/1.4062893","DOIUrl":"https://doi.org/10.1115/1.4062893","url":null,"abstract":"\u0000 Temporomandibular joint (TMJ) is a synovial joint that allows for movement of the jaw in relation to the skull. TMJs are located on both sides of the face, one on either side. It aids in performing of activities such as eating. TMJ disorder may sometime require an implant to replace this joint. Excessive stress on certain screws and implants may adversely affect the TMJ implant and may lead to breakage and requirement of replacement. Therefore, to predict stresses in the implant, finite element analysis (FEA) has been used in this study. We have simulated a human bite by applying force to the teeth and allowing the condyle to rotate and translate over the fossa with the restrictions on the rigid body motions coming from flexible muscles which are modelled as axial connector elements. This method is novel because it eliminates the need to collect data on muscle forces in order to simulate the TMJ as was done conventionally. Each individual mandibular tooth can be loaded in this simulation. Because of the reduced amount of restriction placed on the TMJ implant, it is possible to better understand the true stresses that will be generated under the routine movement of the jaw.","PeriodicalId":73734,"journal":{"name":"Journal of engineering and science in medical diagnostics and therapy","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85119368","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
To investigate the effect of shear stress direction on the direction of cell activity in a confluent layer, the migration and deformation of cells oriented parallel or perpendicular to the direction of the shear flow field were optically tracked in vitro. A Couette-type shear flow between parallel walls was formed between the lower stationary culture dish and the upper rotating disk. Shear stress (<2 Pa) was set by adjusting the rotational speed of the upper disk. Myoblasts (C2C12: mouse myoblast cell line) were cultured in an incubator equipped with an inverted phase-contrast microscope under continuous shear flow for 7 days until confluency. Deformation and migration of each cell were tracked in time-lapse images. Analysis of these images showed that cells deform and migrate along their major axis even at confluency (whether the major axis of the cell is parallel or perpendicular to the shear stress field). As a result, the orientation of the major axis of the cell remains parallel or perpendicular to the shear stress field. This observation may be used to improve the development of engineered muscle tissue.
{"title":"Behavior of a Confluent Layer of Myoblasts Under Shear Flow","authors":"S. Hashimoto, Haruki Kinoshiro, Yuta Nagasawa","doi":"10.1115/1.4062705","DOIUrl":"https://doi.org/10.1115/1.4062705","url":null,"abstract":"\u0000 To investigate the effect of shear stress direction on the direction of cell activity in a confluent layer, the migration and deformation of cells oriented parallel or perpendicular to the direction of the shear flow field were optically tracked in vitro. A Couette-type shear flow between parallel walls was formed between the lower stationary culture dish and the upper rotating disk. Shear stress (<2 Pa) was set by adjusting the rotational speed of the upper disk. Myoblasts (C2C12: mouse myoblast cell line) were cultured in an incubator equipped with an inverted phase-contrast microscope under continuous shear flow for 7 days until confluency. Deformation and migration of each cell were tracked in time-lapse images. Analysis of these images showed that cells deform and migrate along their major axis even at confluency (whether the major axis of the cell is parallel or perpendicular to the shear stress field). As a result, the orientation of the major axis of the cell remains parallel or perpendicular to the shear stress field. This observation may be used to improve the development of engineered muscle tissue.","PeriodicalId":73734,"journal":{"name":"Journal of engineering and science in medical diagnostics and therapy","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-06-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89700582","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Ultrasound therapy is advantageous because it is a noninvasive treatment for the body. Low-intensity pulsed ultrasound can aid fracture healing. We focus on phased array transducers (PATs) to render force fields and realize the improvement in medical equipment to enhance this therapy. This can both render an arbitrary acoustic field and quickly change it by controlling the output and phase of each transducer. There are some algorithms for controlling PATs; however, the effectiveness of these algorithms is limited at sparse control points. We propose a novel algorithm to control PATs at many and close control points in this research. We compare the proposed algorithm with previous ones and assess the avoidance of negative effects outside the target area. The findings show that the proposed algorithm achieves both excellent reconstruction performance and low computational cost, and it can render an acoustic field sufficient to prevent negative effects on the body.
{"title":"An Algorithm for Rendering Force Fields at Many and Close Control Points Using Acoustic Holography for Ultrasound Therapy","authors":"Tomoya Shinato, T. Shiraishi","doi":"10.1115/1.4062684","DOIUrl":"https://doi.org/10.1115/1.4062684","url":null,"abstract":"\u0000 Ultrasound therapy is advantageous because it is a noninvasive treatment for the body. Low-intensity pulsed ultrasound can aid fracture healing. We focus on phased array transducers (PATs) to render force fields and realize the improvement in medical equipment to enhance this therapy. This can both render an arbitrary acoustic field and quickly change it by controlling the output and phase of each transducer. There are some algorithms for controlling PATs; however, the effectiveness of these algorithms is limited at sparse control points. We propose a novel algorithm to control PATs at many and close control points in this research. We compare the proposed algorithm with previous ones and assess the avoidance of negative effects outside the target area. The findings show that the proposed algorithm achieves both excellent reconstruction performance and low computational cost, and it can render an acoustic field sufficient to prevent negative effects on the body.","PeriodicalId":73734,"journal":{"name":"Journal of engineering and science in medical diagnostics and therapy","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-06-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78551799","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Special Section on Recent Developments of Orthopedic and Dental Implants","authors":"O. Mukdadi, Sandipan Roy, A. Merdji","doi":"10.1115/1.4062693","DOIUrl":"https://doi.org/10.1115/1.4062693","url":null,"abstract":"","PeriodicalId":73734,"journal":{"name":"Journal of engineering and science in medical diagnostics and therapy","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-06-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90226632","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
A suitable scaffold architecture is always desirable to get a biomimetic scaffold for bone tissue engineering. In this regard, a fluid structure interaction analysis was carried out on different Micro-CTs (µCTs) and gyroids to observe the in vitro mechanical responses due to fluid flow. Computational fluid dynamics method was used to evaluate the permeability and wall shear stress (WSS), followed by a finite element method to obtain the mechanical stress within scaffolds. Different types of gyroids were designed based on the number of unit cells and porosity, where porosity of gyroids was kept same as µCTs. The main objective of the study is to examine the variations of permeability, WSS and mechanical stress with respect to the number of unit cells and porosity for different gyroids and µCTs. Mechanical responses were also compared between gyroids and µCTs. The results of this study highlighted that permeability and WSS of µCTs came close to the gyroids with 8 unit cells but had significant differences in mechanical stress. The permeability of gyroids increased with the increase of porosity but decreased with the increase in number of unit cells. The opposite trend was shown in case of WSS within gyroids. This study will guide us in predicting an ideal scaffold for trabecular bone replacement.
{"title":"Determination Of Optimum Design Parameters For Gyroid Scaffolds To Mimic A Real Bone-Like Condition In Vitro: A Fluid Structure Interaction Study","authors":"Abhisek Gupta, Masud Rana, N. Mondal","doi":"10.1115/1.4062614","DOIUrl":"https://doi.org/10.1115/1.4062614","url":null,"abstract":"\u0000 A suitable scaffold architecture is always desirable to get a biomimetic scaffold for bone tissue engineering. In this regard, a fluid structure interaction analysis was carried out on different Micro-CTs (µCTs) and gyroids to observe the in vitro mechanical responses due to fluid flow. Computational fluid dynamics method was used to evaluate the permeability and wall shear stress (WSS), followed by a finite element method to obtain the mechanical stress within scaffolds. Different types of gyroids were designed based on the number of unit cells and porosity, where porosity of gyroids was kept same as µCTs. The main objective of the study is to examine the variations of permeability, WSS and mechanical stress with respect to the number of unit cells and porosity for different gyroids and µCTs. Mechanical responses were also compared between gyroids and µCTs. The results of this study highlighted that permeability and WSS of µCTs came close to the gyroids with 8 unit cells but had significant differences in mechanical stress. The permeability of gyroids increased with the increase of porosity but decreased with the increase in number of unit cells. The opposite trend was shown in case of WSS within gyroids. This study will guide us in predicting an ideal scaffold for trabecular bone replacement.","PeriodicalId":73734,"journal":{"name":"Journal of engineering and science in medical diagnostics and therapy","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-05-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75273239","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pulsatile pressure at an artery is a collection of harmonics of the heartbeat. This study examines harmonics of pulsatile pressure at different ages and its effect on other pulsatile parameters and waveform-based clinical indices. Based on a vibrating-string model of the arterial tree, wave velocity and characteristic impedance are related to arterial stiffness and radius. Blood velocity, wall shear stress (WSS), and driving force on the left ventricle (LV) are related to pulsatile pressure. Reflection magnitude and return time are related to input impedance. These relations are applied to pulsatile pressure and blood velocity at the ascending aorta (AA) and the carotid artery (CA) at different ages in a database to calculate harmonics of all the pulsatile parameters and reflection magnitude and return time at each harmonic. Harmonics of pulsatile pressure varies with aging and between the two arteries. Reflection magnitude and return time vary between harmonics. While wave reflection manifests the arterial tree (i.e., arterial stiffness and radius) and termination, harmonics of pulsatile pressure is a combination of the LV, the arterial tree, and termination. Harmonics of pulsatile pressure dictates harmonics of WSS and affects endothelial function. Harmonics of pulsatile pressure needs to serve as an independent clinical index indicative of the LV function and endothelial function. Reflection magnitude and return time of the 1st harmonic of pulsatile pressure serve as clinical indices indicative of arterial stiffness and radius.
{"title":"Harmonics of Pulsatile Pressure At Different Ages and Its Effect On Other Pulsatile Parameters and Waveform-based Clinical Indices","authors":"Z. Hao","doi":"10.1115/1.4062570","DOIUrl":"https://doi.org/10.1115/1.4062570","url":null,"abstract":"\u0000 Pulsatile pressure at an artery is a collection of harmonics of the heartbeat. This study examines harmonics of pulsatile pressure at different ages and its effect on other pulsatile parameters and waveform-based clinical indices. Based on a vibrating-string model of the arterial tree, wave velocity and characteristic impedance are related to arterial stiffness and radius. Blood velocity, wall shear stress (WSS), and driving force on the left ventricle (LV) are related to pulsatile pressure. Reflection magnitude and return time are related to input impedance. These relations are applied to pulsatile pressure and blood velocity at the ascending aorta (AA) and the carotid artery (CA) at different ages in a database to calculate harmonics of all the pulsatile parameters and reflection magnitude and return time at each harmonic. Harmonics of pulsatile pressure varies with aging and between the two arteries. Reflection magnitude and return time vary between harmonics. While wave reflection manifests the arterial tree (i.e., arterial stiffness and radius) and termination, harmonics of pulsatile pressure is a combination of the LV, the arterial tree, and termination. Harmonics of pulsatile pressure dictates harmonics of WSS and affects endothelial function. Harmonics of pulsatile pressure needs to serve as an independent clinical index indicative of the LV function and endothelial function. Reflection magnitude and return time of the 1st harmonic of pulsatile pressure serve as clinical indices indicative of arterial stiffness and radius.","PeriodicalId":73734,"journal":{"name":"Journal of engineering and science in medical diagnostics and therapy","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-05-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78088223","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Balamurugan Subramanian, Rushav Kumar Chhatoi, Vallabh Dixit, P. S. Manickam
The human cervical spine is the most essential support system of the whole body. It consists of vertebras, tissues, facet joints, intervertebral discs and ligaments. The problems in the cervical spine is more frequent, it can be due to accident or increase with the age. The objective of this study is to develop the interbody fusion cage with different porosity size and study the behavior of the cage for the compression loads. The bone graft introduced in the cage will provide osteointegration with the adjacent vertebra. For the biomechanical analysis we created the cervical level cervical 6- cervical 7 and inserted the cage in the functional spine unit and analyzed using finite element analysis for compression loadings. In this study by introducing the semi spherical shape porosity in the inferior and superior surface of the cage will reduce the cage stress and in the same porosity we introduced the bone graft for the better osteointegration. So, the reduced stress in the cage structure will reduce the occurrence of the subsidence and migration of the cage.
{"title":"Mechanical Response Of Trapezoidal Cage On Cervical 6-Cervical 7 Level","authors":"Balamurugan Subramanian, Rushav Kumar Chhatoi, Vallabh Dixit, P. S. Manickam","doi":"10.1115/1.4062569","DOIUrl":"https://doi.org/10.1115/1.4062569","url":null,"abstract":"\u0000 The human cervical spine is the most essential support system of the whole body. It consists of vertebras, tissues, facet joints, intervertebral discs and ligaments. The problems in the cervical spine is more frequent, it can be due to accident or increase with the age. The objective of this study is to develop the interbody fusion cage with different porosity size and study the behavior of the cage for the compression loads. The bone graft introduced in the cage will provide osteointegration with the adjacent vertebra. For the biomechanical analysis we created the cervical level cervical 6- cervical 7 and inserted the cage in the functional spine unit and analyzed using finite element analysis for compression loadings. In this study by introducing the semi spherical shape porosity in the inferior and superior surface of the cage will reduce the cage stress and in the same porosity we introduced the bone graft for the better osteointegration. So, the reduced stress in the cage structure will reduce the occurrence of the subsidence and migration of the cage.","PeriodicalId":73734,"journal":{"name":"Journal of engineering and science in medical diagnostics and therapy","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-05-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76143675","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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