Fig 5 - available from: 3D Printing in Medicine
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Background:
Traditional prosthetic fabrication relies heavily on plaster casting and 3D models for the accurate production of prosthetics to allow patients to begin rehabilitation and participate in daily activities. Recent technological advancements allow for the use of 2D photographs to fabricate individualized prosthetics based on patient anthr...
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Context 1
... measure of unilateral gross manual dexterity. The BBT has been used in previous prosthetic assessment studies and has been seen to measure prosthetic limb performance and motor learning [17,18]. The Box and Block test required the subject to move 1-in. blocks one at a time from one box, over a partition, and to drop the blocks in the adjacent box (Fig. 5). The subject was seated comfortably, and then completed a one-minute trial of the BBT with his affected hand, unaffected hand, and affected hand with the 3D printed prosthesis and MFP The subject was asked to place their hands on the sides of the ...
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Citations
... The identified meaningful tasks include assessment utilization, time management, participant responsiveness, clinical reasoning, common language and available resources (Panchik et al., 2021). Young et al. (2019) explored the potential of 3D printing in the development of finger prosthetics, in which two types of body-powered 3D-printed partial finger prosthesis is developed, and assessed its task and efficiency. This in turn helps the people in underdeveloped areas to spend less for functional finger prosthesis Figure 18.1 Anatomy of a finger indicating three major parts to understand its biomechanics. ...
... This in turn helps the people in underdeveloped areas to spend less for functional finger prosthesis Figure 18.1 Anatomy of a finger indicating three major parts to understand its biomechanics. (Young et al., 2019). Belvončíková et al. (2020) developed a 3D-printed finger prosthesis associated with two different flexion mechanisms, namely wire and lever mechanism and electromagnet mechanism, to achieve efficient working conditions. ...
The role of additive manufacturing (AM) in healthcare applications is increasing to develop prosthesis for congenital and accidental deformities. Amputation of finger could be because of either a traumatic injury or preplanned surgery to prevent spread of serious disease. Biomechanism of human fingers is more crucial and requires complex design structures to replicate its mechanical motion. The main focus of this work is to design and develop a customized functional prosthesis mimicking the characteristics of pinky finger.
Methods
AM was used to develop a customized functional prototype of a finger prosthesis with novel mechanism. A novel mechanism was developed to perform operations of the finger. The mechanism consists of three major parts, namely base, middle and tip. The base part has a socket to hold the prosthesis in position on the hands of the patient. Middle part was designed to connect base and tip parts of the finger prosthesis. A tip part at the end supports touching of the desired objects. Finally, a rigid connector part supports three major parts of the mechanism to remain connected through tendon and wrist of the patient. Design optimization was performed to decrease weight of the prosthesis. Acrylic material was used to manufacture the prototype in order to understand the outcome of desired biomechanism and further design improvements were made with the mechanism. Finally major parts of the finger were made with ABS material. Fused Deposition Method (FDM) technology was used to manufacture the finger prosthesis and indulge in post-processing to achieve the finished product.
... The identified meaningful tasks include assessment utilization, time management, participant responsiveness, clinical reasoning, common language and available resources (Panchik et al., 2021). Young et al. (2019) explored the potential of 3D printing in the development of finger prosthetics, in which two types of body-powered 3D-printed partial finger prosthesis is developed, and assessed its task and efficiency. This in turn helps the people in underdeveloped areas to spend less for functional finger prosthesis Figure 18.1 Anatomy of a finger indicating three major parts to understand its biomechanics. ...
... This in turn helps the people in underdeveloped areas to spend less for functional finger prosthesis Figure 18.1 Anatomy of a finger indicating three major parts to understand its biomechanics. (Young et al., 2019). Belvončíková et al. (2020) developed a 3D-printed finger prosthesis associated with two different flexion mechanisms, namely wire and lever mechanism and electromagnet mechanism, to achieve efficient working conditions. ...
... Hadirnya teknologi reverse engineering (RE) dan rapid prototyping (RP) sudah dimanfaatkan secara luas termasuk dalam bidang medis seperti pembuatan jaringan dan organ, pembuatan prostetik dan orthosis/ splint, implan, dan model anatomi yang bisa dimodifikasi [15]. Hal tersebut memungkinkan pembuatan orthosis individual yang sesuai berdasarkan antropometri pasien [16]. Keunggulan 3D printer adalah mudah dalam modelling, cepat dalam pabrikasi, dan hemat biaya produksi menjadikan 3D printer sangat tepat digunakan sebagai alternatif pembuatan orthosis [17]. ...
span>Salah satu treatment untuk spasticity efek pasca stroke, fracture karena kecelakaan, injury karena cedera olahraga, dan musculoskeletal disorders karena pekerjaan kantoran pada pergelangan tangan selain dengan operasi yaitu dengan penggunaan wrist hand orthosis . Umumnya pembuatan medical device tersebut menggunakan metode konvensional yang mempunyai kekurangan. Hadirnya teknologi reverse engineering (RE) dapat diaplikasikan dalam bidang medis seperti pembuatan alat prosthetic atau orthosis. Pada penelitian ini bertujuan untuk mengembangkan desain wrist hand orthosis berbasis reverse engineering dan menganalisisnya menggunakan metode elemen hingga. Metode penelitian meliputi 3D scanning, CAD modelling, model analysis, dan post processing. Material model yang digunakan adalah ABS dengan variasi ketebalan 5 mm, 6 mm, dan 7 mm, serta besar nilai pembebanan mulai dari 5 N sampai 25 N. Hasil analisis equivalent stress menunjukkan model ketebalan 5 mm mampu menahan load 25 N dengan maximum equivalent stress sebesar 13.52 MPa yang masih tergolong aman dengan nilai safety factor 2.11 dengan area kritis di ujung punggung telapak tangan model antara ibu jari dan jari telunjuk. Hasil equivalent elastic strain dan deformation juga mempunyai tren grafik yang sama dengan nilai maximum pada model ketebalan 5 mm yaitu masing-masing sebesar 0.0057 mm dan 0.616 mm. Dari hasil analisis tersebut dapat disimpulkan bahwa model wrist hand orthosis berlubang voronoi yang memiliki bentuk seperti surface tangan manusia dengan ketebalan minimalis 5 mm mampu bekerja dengan baik memfiksasi tangan pasien untuk proses rehabilitasi.</span
... Further, 3D-printed custom-made prostheses may also become more important in trauma-related and congenital malformations of the hand. After partial finger [54,55] or hand amputation [56,57], customized prostheses supported daily activities, and showed an improved functional outcome, while no additional surgeries were needed. ...
Unlabelled:
Three-dimensional printing for medical applications in surgery of the upper extremity has gained in popularity as reflected by the increasing number of publications. This systematic review aims to provide an overview of the clinical use of 3D printing in upper extremity surgery.
Methods:
We searched the databases PubMed and Web of Science for clinical studies that described clinical application of 3D printing for upper extremity surgery including trauma and malformations. We evaluated study characteristics, clinical entity, type of clinical application, concerned anatomical structures, reported outcomes, and evidence level.
Results:
We finally included 51 publications with a total of 355 patients, of which 12 were clinical studies (evidence level II/III) and 39 case series (evidence level IV/V). The types of clinical applications were for intraoperative templates (33% of a total of 51 studies), body implants (29%), preoperative planning (27%), prostheses (15%), and orthoses (1%). Over two third of studies were linked to trauma-related injuries (67%).
Conclusion:
The clinical application of 3D printing in upper extremity surgery offers great potential for personalized approaches to aid in individualized perioperative management, improvement of function, and ultimately help to benefit certain aspects in the quality of life.
... Likewise a two distinct powered FP and noted the results of a single subject in terms of functionality and comfort. A rise in performance was noticeable when either prostheses was utilized, with the main distinctions being between the construction, design, and use of the prostheses and the general action mechanisms [18]. Also, a two kinds of bodypowered finger prosthetics and evaluated a single subject's functional and satisfaction outcomes were discussed. ...
... b c a Figure 2. One finger prostheses a) thumb finger [23], b) forefinger [18], c) index finger [22]. a b c Figure 3. Two finger prostheses a) index and middle fingers [17], b) thumb and index fingers [15], c) robotic fingers [26]. ...
A partial hand amputation can significantly change a person's life for the
better. Partial amputees must be fitted with a prostheses, which is one way to
enhance their function and solve some of the issues they confront. The
purpose and aesthetics of partial hand prosthetics range widely to help people
perform their tasks. There isn't a perfect replacement item available yet that
can replace what was lost. The comprehensive study examined the variations
in partial hand prosthetics using experimental approaches that explain the
physical characteristics that include weight, grip characteristics, design
flexibility, shape, adaptability, and pinching action those are used for
engineering requirements and formal system analysis. This review article
examines and characterizes various prosthetic solutions that have been
researched and offered by academics.
... 16 La naturaleza intrincada de estos dispositivos demanda un enfoque especializado en su manufactura y producción, requiriendo instalaciones equipadas con maquinaria avanzada y un equipo altamente capacitado para llevar a cabo su manufactura. 17,18 En este contexto, la impresión 3D ha emergido como una herramienta revolucionaria en el ámbito de la cirugía plástica. 19 Su capacidad para generar modelos anatómicos personalizados ha representado un avance significativo en la planificación preoperatoria, la educación médica y creación de material de osteosíntesis prefabricado, así como en la manufactura de implantes y guías quirúrgicas a la medida de cada paciente. ...
... 19 Su capacidad para generar modelos anatómicos personalizados ha representado un avance significativo en la planificación preoperatoria, la educación médica y creación de material de osteosíntesis prefabricado, así como en la manufactura de implantes y guías quirúrgicas a la medida de cada paciente. [16][17][18][19] Históricamente, los modelos impresos en 3D con fines médicos solían incurrir en costos www.medigraphic.com/cirugiaplastica considerables, y la puesta en marcha de laboratorios de impresión requería una inversión significativa. ...
... La creación de un laboratorio especializado en impresión 3D dentro de nuestra institución permitió aún mayores ahorros al evitar externalizar el proceso. Al comparar estos costos con los de prótesis de silicona cosmética (que varían entre $900 y $3,000 USD) o prótesis funcionales (con precios desde $9,000 hasta $19,000 USD), 17 nuestro enfoque se destaca por permitir la producción de múltiples modelos, la realización de ajustes y reemplazo de prótesis a una fracción del costo convencional. 17 Esta propuesta es especialmente relevante en sistemas de salud, donde cerca de 50% de la población carece de acceso a servicios de seguridad social y los pacientes asumen directamente los costos de atención médica. ...
... Prosthetic rehabilitation of the amputated finger has been shown to help psychosocial characteristics of a patient by providing reduced hypersensitivity and increased strength in grip. [1] Despite the fact that these prostheses give psychological and esthetic benefits, they generally lack the functioning of a normal finger. ...
... [4] In the literature, improved accuracy and efficiency of socket fabrication have been documented using CAD combined with standard tessellation language (STL) files and additive manufacturing. [1] A combination of these technologies can also be used for remote manufacturing of prosthesis if the necessary designs and measurements are obtained. [5] Although there are a few accounts of functional prosthesis in the literature, there is no literature on characterized functioning three-dimensional (3-D)-printed finger prosthetics, to the best of the authors' knowledge. ...
... To the best of the authors' knowledge, a total of three functional finger prostheses have been reported in the literature. [1,10] First of which was reported by Pattanaik and Pattanaik, who incorporated a pliable hairpin into modified conventional silicone finger prosthesis. However, the functioning in their prosthesis was restricted to only two fixed positions, opened or closed position, with the patient having to adjust the pin manually. ...
The loss of a finger in any capacity as a result of trauma has a significant influence on the patient’s everyday life, as well as their psychological and physical health. Multiple conventional techniques have been reported in the literature, mostly offering psychological and cosmetic benefits to such individuals. However, there is a paucity of literature for functional finger prosthesis. This case report describes rehabilitation of an amputated index finger using an innovative digital workflow, thereby making it impression-free, cast-free, accurate, less time-consuming, and above all functionally viable. Digital technology was used for designing, and fabrication of this prosthesis was done using three-dimensional (3-D) printing. When compared to traditional prostheses, this 3-D–printed prosthesis was functional, allowing the patient to conduct everyday activities and providing the patient’s confidence a psychological boost.
... Fabrication of tissues and organs, manufacture of prosthetics and orthoses/splints, implants, and anatomical models that can be modified are several forms of application in the medical field (Dodziuk, 2016). This benefit allows the creation of a suitable individual orthosis based on the patient's anthropometry (Young et al., 2019). The advantages of 3D printers are that they are easy to model, fast to manufacture, and cost-effective in production, making 3D printers very appropriate to be used as an alternative to orthoses (Choi et al., 2019). ...
Other than surgery, post-stroke spasticity, fractures due to accidents, sports injuries, and musculoskeletal disorders due to office work on the wrist can be treated using a wrist-hand orthosis. The customized conventional methods usually have some drawbacks, which are more expensive, take a long time to manufacture, and require expert skills from medical therapists. The presence of reverse engineering (RE) technology can be applied in the medical field, such as the manufacture of prosthetic or orthosis devices. This study aims to develop a reverse engineering-based wrist-hand orthosis design, analyze it using the finite element method, and fabricate it. Research methods included 3D scanning, CAD modelling, model analysis, 3D printing, and postprocessing. The model material used was PLA with variations in the thickness of 5 mm, 5.5 mm, and 6 mm, and the load values range from 0 N to 30 N. The results of the equivalent stress analysis showed that the 5 mm thickness model could withstand a load of 30 N with a maximum equivalent stress of 23.46 MPa. With a safety factor value of 2.56, it was still relatively safe, and a critical area was at the back end of the model's palm between the thumb and index finger. The equivalent elastic strain and deformation results also had the same graphic trend with the maximum values for the same model, which were 0.0076 mm and 0.614 mm, respectively. The 3D printing FDM result showed that the Voronoi perforated wrist-hand orthosis prototype was sturdy, fit, and comfortable. It is expected to hold muscle tone and immobilize for hand rehabilitation.
... The Box and Block Test (BBT) has been widely used for UE motor function assessment (Santisteban et al. 2016) as well as prosthetic assessment (Young et al. 2019) due to its merits, such as simple operation, short time consumption and high validity (Mathiowetz et al. 1985). Several virtual BBT programs have been developed in some previous research (Alvarez-Rodríguez et al. 2020;Everard et al. 2022;Gieser et al. 2016;Oña et al. 2020), however, without haptic rendering, movements of grasping in virtual environments are significantly different from those of natural grasping in real physical environments (Furmanek et al. 2019). ...
The Box and Block Test (BBT) has been widely used to assess gross upper extremity (UE) motor function. We designed a haptic-feedback virtual reality (VR) system, named the VBBT, to improve the BBT for more specific assessments. The VBBT task required users to move virtual blocks from one compartment of a virtual box to the other within one minute. The focus of this pilot study was to examine the validity, reliability and motivation of the novel assessment. Totally, 113 healthy subjects and 16 post-stroke patients were recruited for a thorough evaluation. We found that scores of the BBT and VBBT were significantly correlated, both of which declined as participants’ age. The normative ranges of kinematic metrics in different age groups were used to identify deficiencies in UE motor function involving smoothness, hand dexterity and motion efficiency. Also, a significant correlation between the VBBT and Action Research Arm Test (ARAT) (|r|≥ 0.56) indicated concurrent validity of the novel assessment. Test–retest results indicated that the VBBT assessment had high reliability (ICCs = 0.62–0.80). The Intrinsic Motivation Inventory results showed that the VBBT was given higher scores for the enjoyment (p < 0.05) and completion effort (p < 0.05) than that for the BBT, indicating patients have greater motivation in the VBBT assessment. In conclusion, the VBBT can provide validated, reliable and motivative assessment for UE motor function with kinematic metrics. It suggests that the haptic-feedback VR contributes to the BBT in specific assessments of UE motor function.
... Copper particles are more effective than other materials, e.g., silver, which causes a reaction with the skin in some cases [41]. The effectiveness of 3D printing in the medical field, such as artificial organs for the human body, in terms of cost and antibacterial properties has already been proven by various studies [44,45]. In this study, the antibacterial properties of PLA-based sheets prepared through fused filament fabrication were investigated. ...
Due to the prevailing existence of the COVID-19 pandemic, novel and practical strategies to combat pathogens are on the rise worldwide. It is estimated that, globally, around 10% of hospital patients will acquire at least one healthcare-associated infection. One of the novel strategies that has been developed is incorporating metallic particles into polymeric materials that neutralize infectious agents. Considering the broad-spectrum antimicrobial potency of some materials, the incorporation of metallic particles into the intended hybrid composite material could inherently add significant value to the final product. Therefore, this research aimed to investigate an antimicrobial polymeric PLA-based composite material enhanced with different microparticles (copper, aluminum, stainless steel, and bronze) for the antimicrobial properties of the hybrid composite. The prepared composite material samples produced with fused filament fabrication (FFF) 3D printing technology were tested for different time intervals to establish their antimicrobial activities. The results presented here depict that the sample prepared with 90% copper and 10% PLA showed the best antibacterial activity (99.5%) after just 20 min against different types of bacteria as compared to the other samples. The metallic-enriched PLA-based antibacterial sheets were remarkably effective against Staphylococcus aureus and Escherichia coli; therefore, they can be a good candidate for future biomedical, food packaging, tissue engineering, prosthetic material, textile industry, and other science and technology applications. Thus, antimicrobial sheets made from PLA mixed with metallic particles offer sustainable solutions for a wide range of applications where touching surfaces is a big concern.
