Three-Dimensional (3D) Printing in Orthopedics Education

Maglara, Elli; Angelis, Stavros; Solia, Eirini; Apostolopoulos, Alexandros P; Tsakotos, George; Vlasis, Konstantinos; Katsimantas, Antonios; Filippou, Dimitrios

doi:10.1615/jlongtermeffmedimplants.2020036911

Cited by 13 publications

(13 citation statements)

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“…The most common applications of machine vision include target detection, recognition, positioning, and tracking in natural scenes. Detection is mainly to judge whether there is a target in the scene; recognition is mainly to judge what the target is in the scene; positioning is mainly to calculate the specific position of the target in the scene; tracking is mainly to track the moving target in the scene [19]. The use of motion capture technology in animation production can greatly improve the level of animation production, greatly improve the efficiency of animation production, reduce costs, and make the animation production process more intuitive and vivid.…”

Section: Three-dimensional Kinematics and Algorithm Descriptionmentioning

confidence: 99%

“…In addition, s and e are the constant distributions of the formula, g and a are the medians, and yd and xd are a range of values that change over time; so, this formula can well summarize the entire process range. Substitute Equation (20) into Equation (19) to solve a standard problem to update the weight ρ. In order to improve the efficiency of the algorithm, this paper uses a dual action set algorithm to search for 8…”

Section: Journal Of Sensorsmentioning

confidence: 99%

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[Retracted] 3D Kinematic Analysis of Intelligent Vision Sensor Image in Football Training

Luo

2021

Journal of Sensors

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With its advantages of high precision, noncontact, and high intelligence, intelligent visual sensor detection technology meets the requirements for online detection of motion status and intelligent recognition of motion images during sports activities, and its applications are becoming more and more extensive. In order to deeply explore the feasibility of using intelligent vision sensor technology to analyze the three-dimensional action of football, this article uses algorithm analysis method, technology summary method, and physical assembly method, collects samples, analyzes the motion model, streamlines the algorithm, and then creates a model based on intelligent visual sensor technology that can analyze the three-dimensional movement in football training. After the experimental objects are selected, the model is established in the ADM environment. All athletes do a uniform motion, the standard input motion speed is 5 m/s, they all move in the opposite direction relative to their respective coordinate axes, and the motion time is 6 seconds. The results show that the movement curves of the athletes in the three coordinate axis directions are basically the same. When the exercise time is 6 seconds, the coordinate values of the athletes on the three coordinate axes are all 0.992 m. We set six intensities in the experiment: 5%, 15%, 25%, 35%, 45%, and 55%. It can be found that as the noise intensity increases from 5% to 45%, the estimation error gradually increases, but as a whole, it is still at a relatively small level. It shows that the algorithm in this paper still has practical significance. It is basically realized that under the guidance of intelligent vision sensor technology, a model can be designed to successfully and efficiently analyze the three-dimensional movement pattern in training.

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Section: Three-dimensional Kinematics and Algorithm Descriptionmentioning

confidence: 99%

Section: Journal Of Sensorsmentioning

confidence: 99%

[Retracted] 3D Kinematic Analysis of Intelligent Vision Sensor Image in Football Training

Luo

2021

Journal of Sensors

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“…As material science and imaging technology continue to develop, the applications of 3D printing technology to the field of medicine have become more widespread. In recent years, 3D printing has played an important role in the fields of orthopedics, stomatology, and plastic surgery, to name a few ( 17 , 18 ). In addition, cardiovascular diseases seriously endanger human health because of the inevitable surgical trauma from a traditional thoracotomy, and the surgical procedures take much longer than the minimally invasive procedures.…”

Section: Discussionmentioning

confidence: 99%

Mitral Valve-in-Valve Implant of a Balloon-Expandable Valve Guided by 3-Dimensional Printing

Mao

Liu

et al. 2022

Front. Cardiovasc. Med.

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BackgroundOur goal was to explore the role of 3-dimensional (3D) printing in facilitating the outcome of a mitral valve-in-valve (V-in-V) implant of a balloon-expandable valve.MethodsFrom November 2020 to April 2021, 6 patients with degenerated mitral valves were treated by a transcatheter mitral V-in-V implant of a balloon-expandable valve. 3D printed mitral valve pre- and post-procedure models were prepared to facilitate the process by making individualized plans and evaluating the outcomes.ResultsEach of the 6 patients was successfully implanted with a balloon-expandable valve. From post-procedural images and the 3D printed models, we could clearly observe the valve at the ideal position, with the proper shape and no regurgitation. 3D printed mitral valve models contributed to precise decisions, the avoidance of complications, and the valuation of outcomes.Conclusions3D printing plays an important role in guiding the transcatheter mitral V-in-V implant of a balloon-expandable valve.Clinical Trial RegistrationClinicalTrials.gov Protocol Registration System (NCT02917980).

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“…In addition, with the continuous development of material science and imaging technology, the application of medical 3D printing technology is becoming much more extensive. In recent years, 3D printing has played an important role in the treatment of orthopedics, stomatology, plastic surgery, and other fields [9,10]. Because the cardiovascular system is pulsatile and flexible, with elaborate, complex anatomical structures, development of 3D printing technology in this field has been relatively slow.…”

Section: Discussionmentioning

confidence: 99%

Percutaneous Therapy of Functional Interrupted Aortic Arch with 3-1 Dimensional Printing Guidance

Mao¹,

L²,

Zhai³

et al. 2022

austinjclincardiolog

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Functional interrupted aortic arch is a congenital malformation characterized by a complete separation between the ascending aorta and the descending aorta. Untreated patients are in danger of having late complications including cerebral hemorrhage, aneurysm formation, and aortic regurgitation. Traditionally, classical surgical therapies included bypass grafting or orthotopic repair. Herein, we report a simplified percutaneous therapy for functional interrupted aortic arch with a retrograde crossing technique and without an incremental-sized expandable balloon. With the guidance of 3-dimensional printing, percutaneous treatment with a covered stent is a feasible, safe, and effective alternative to surgery with excellent short- and midterm results in selected patients with favorable anatomy.

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Three-Dimensional (3D) Printing in Orthopedics Education

Cited by 13 publications

References 0 publications

[Retracted] 3D Kinematic Analysis of Intelligent Vision Sensor Image in Football Training

[Retracted] 3D Kinematic Analysis of Intelligent Vision Sensor Image in Football Training

Mitral Valve-in-Valve Implant of a Balloon-Expandable Valve Guided by 3-Dimensional Printing

Percutaneous Therapy of Functional Interrupted Aortic Arch with 3-1 Dimensional Printing Guidance

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