Custom-made cast titanium implants produced with CAD/CAM for the reconstruction of cranium defects

Heißler, E.; Fischer, F.; Boiouri, S.; Lehrnann, T.; Mathar, W.; Gebhardt, Andreas; Lanksch, W.; Bler, J.

doi:10.1016/s0901-5027(98)80060-x

Cited by 118 publications

(56 citation statements)

References 12 publications

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“…2 Since that time, the development of medical rapid prototyping has been facilitated by advances in medical imaging technology, computer hardware, and 3D image processing software. For many years, the technology was applied almost exclusively to create models and manufacture implants of bony structures in a range of medical specialties, including oral and maxillofacial surgery, 3,4 neurosurgery, 5,6 and orthopedics. 7,8 As rapid prototyping advanced, it was further utilized in various disciplines to create models of vasculature structures in the brain 9 and periphery.…”

Section: Introduction To Rapid Prototypingmentioning

confidence: 99%

Rapid Prototyping

et al. 2008

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Abstract-As the appreciation of structural heart disease in children and adults has increased and as catheter-based closure procedures are now being performed in clinical practice, cardiovascular physicians have multiple compelling new reasons to better understand cardiac anatomic and spatial relationships. Current 2-dimensional imaging techniques remain limited both in their ability to represent the complex 3-dimensional relationships present in structural heart disease and in their capacity to adequately facilitate often complex corrective procedures. This review discusses the cardiovascular applications of rapid prototyping, a new technology that may not only play a significant role in the planning of catheter-based interventions but also may serve as a valuable educational tool to enhance the medical community's understanding of the many forms of structural heart disease. Key Words: computed tomography Ⅲ heart defects, congenital Ⅲ heart septal defects Ⅲ percutaneous closure Ⅲ rapid prototyping C ardiovascular physicians and engineers have multiple compelling new reasons to better understand cardiac anatomic spatial relationships. First, congenital heart disease in children and adults has increased the appreciation of intracardiac shunt lesions and other anatomy-based lesions. In the last several years, there has been a dramatic increase in the number of both approved and investigative catheter-based therapies for congenital as well as acquired structural heart disease that involve both modification of structures and implantation of novel devices. Second, innovative cardiac valve interventions require an advanced understanding of spatial relationships and an ability to effectively navigate delivery systems within cardiac chambers. Finally, therapeutic intracardiac procedures in electrophysiology require an in-depth understanding of 3-dimensional (3D) relationships of cardiac structures to effectively perform both simple and complex ablation procedures.Fortunately, each of these new therapies has been accompanied by advances in medical imaging modalities that permit a more accurate, noninvasive assessment of cardiac defects. Current 2-dimensional (2D) imaging techniques, however, fall short both in representing the complex 3D relationships present in structural heart disease and adequately facilitating often complex corrective procedures. The physician must instead integrate the 2D images in his/her mind and conceptually extract the relevant 3D relationships. Although computer graphics allow for 3D representations of cardiac structures using processed 2D images from modalities such as ultrasound and multidetector computed tomography (CT), these representations remain limited by their overall lack of realism, dependence on computer workstations for visualization, and inability to be tangibly manipulated. The recent development of rapid prototyping, a method by which 2D images are processed into 3D physical models, has provided a new way for physicians and engineers to more clearly understand complex spatial re...

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Section: Introduction To Rapid Prototypingmentioning

confidence: 99%

Rapid Prototyping

et al. 2008

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“…1,10,13 In recent years, digital computer techniques have been widely used for molding titanium mesh for cranioplasty. 2,11,12 In this technique, head CT scan data, obtained from the contralateral side of the skull defect, is…”

mentioning

confidence: 99%

Comparison of manually shaped and computer-shaped titanium mesh for repairing large frontotemporoparietal skull defects after traumatic brain injury

Luo

Liu²,

Xie³

et al. 2012

FOC

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Object The object of this study was to compare the effects and complications of manual and computer-aided shaping of titanium meshes for repairing large frontotemporoparietal skull defects following traumatic brain injury. Methods From March 2005 to June 2011, 161 patients with frontotemporoparietal skull defects were observed. Patients were divided into 2 groups according to the repair materials used for cranioplasty: 83 cases used computer-aided shaping for the titanium mesh, whereas the remaining 78 cases used a manually shaped titanium mesh. The advantages and disadvantages of the 2 methods were compared. Results No case of titanium mesh loosening occurred in either group. Subcutaneous fluid collection, titanium mesh tilt, and temporal muscle pain were the most common complications. In the manually shaped group, there were 14 cases of effusion, 10 cases of titanium mesh tilt, and 15 cases of temporal muscle pain. In the computer-aided group, there were 6 cases of effusion, 3 cases of titanium mesh tilt, and 6 cases of temporal muscle pain. The differences were significant between the 2 groups (p < 0.05). Other common complications were scalp infection, exposure of titanium mesh, epidural hematoma, and seizures. In the computer-aided group, the operative time decreased (p < 0.01), the number of screws used was reduced (p < 0.01), and the satisfaction of patients was significantly increased (p < 0.05). Conclusions Computer-aided shaping of titanium mesh for repairing large frontotemporoparietal skull defects decreases postoperative complications and the operative duration, reduces the number of screws used, increases the satisfaction of patients, and restores the appearance of the patient's head, making it an ideal choice for cranioplasty.

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“…Since 1990, 3D printing has been used in oral and maxillofacial surgery [6], neurosurgery [7], and orthopedics [8]. Investigators used computerized tomography (CT) and magnetic resonance imaging (MRI) data to create anatomical models of long bones, facial bones, brain, heart, and lung.…”

Section: D Printing and Medical Applicationsmentioning

confidence: 99%

3D Printing and Personalized Airway Stents

et al. 2017

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In recent years, the 3D printing industry has undergone rapid development. Clinicians and researchers have begun to apply this technology in procedural planning, tissue engineering, and device manufacturing. Rapid prototyping and additive manufacturing techniques in the healthcare field have already yielded very exciting results and point to a bright future involving these technologies. This is especially true in pulmonology. 3D printing industry growth is accompanied by increased availability of 3D printers and printable materials, which offers exciting arrays of possible applications. In this review, we present a brief history of 3D printing and its applications in the medical field with a focus on pulmonology. Additionally, we describe a methodology on how to 3D model and print personalized airway prosthesis via 3D Slicer and a commercial 3D printer. We hope this will help to stimulate additional innovation and application of 3D printing in medicine.

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Custom-made cast titanium implants produced with CAD/CAM for the reconstruction of cranium defects

Cited by 118 publications

References 12 publications

Rapid Prototyping

Rapid Prototyping

Comparison of manually shaped and computer-shaped titanium mesh for repairing large frontotemporoparietal skull defects after traumatic brain injury

3D Printing and Personalized Airway Stents

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