One-step reconstruction with a 3D-printed, custom-made prosthesis after total en bloc sacrectomy: a technical note

Wei, Ran; Guo, Wei; Ji, Tao; Zhang, Yidan; Liang, Hui

doi:10.1007/s00586-016-4871-z

Cited by 121 publications

(99 citation statements)

References 26 publications

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“…These range from customised fixation in the upper cervical and lower lumbar spine (44,48,59) to insertion of a 3DP vertebra (46) and sacral reconstructions (45,47). A summary of PSIs used in spinal surgery in the literature is shown in Table 3.…”

Section: Customised Implantsmentioning

confidence: 99%

“…A summary of PSIs used in spinal surgery in the literature is shown in Table 3. The lack of specialised implants for reconstruction after tumour resection is evidenced by the majority of cases being oncological in nature (45)(46)(47)(48). The remaining cases utilised 3DP PSIs due to unique anatomy associated with degenerative change and a congenital anomaly (44,48).…”

Section: Customised Implantsmentioning

confidence: 99%

“…This increases the stability of the implant whilst minimising complications such as stress shielding and subsidence (45)(46)(47). Xu et al (46) created a prosthesis with zero profile anteriorly for this purpose, minimising the risk of dysphagia in their patient.…”

Section: Customised Implantsmentioning

confidence: 99%

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Systematic review of 3D printing in spinal surgery: the current state of play

et al. 2017

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Three-dimensional printing (3DP), also known as "Additive Manufacturing", is a rapidly growing industry, particularly in the area of spinal surgery. Given the complex anatomy of the spine and delicate nature of surrounding structures, 3DP has the potential to aid surgical planning and procedural accuracy. We perform a systematic review of current literature on the applications of 3DP in spinal surgery. Six electronic databases were searched for original published studies reporting cases or outcomes for 3DP surgical models, guides or implants for spinal surgery. The findings of these studies were synthesized and summarized. These searches returned a combined 2,411 articles. Of these, 54 were included in this review. 3DP is currently used for surgical planning, intra-operative surgical guides, customised prostheses as well as "Off-the-Shelf" implants. The technology has the potential for enhanced implant properties, as well as decreased surgical time and better patient outcomes. The majority of the data thus far is from low-quality studies with inherent biases linked with the excitement of a new field. As the body of literature continues to expand, larger scale studies to evaluate advantages and disadvantages, and longer-term follow up will enhance our knowledge of the effect 3DP has in spinal surgery. In addition, issues such as financial impact, time to design and print, materials selection and bio-printing will evolve as this rapidly expanding field matures.

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Section: Customised Implantsmentioning

confidence: 99%

Section: Customised Implantsmentioning

confidence: 99%

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Systematic review of 3D printing in spinal surgery: the current state of play

et al. 2017

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“…The early case series are encouraging in various field of complex orthopaedic procedures, like bone tumour surgery [8][9][10]14], revision hip surgery [6,7,11], spinal implants [12][13][14] and trauma fracture fixation and reconstruction [15,16]. The additive manufacturing technology may address the reconstructive challenges that off-the-shelf, standard implants cannot provide for implant-size or disease-specific surgical requirement.…”

Section: Clinical Applications Of Am Orthopaedic Implantsmentioning

confidence: 99%

“…The standard traditional implants may not address the reconstructive challenges such as severe bone deformity or bone loss after implant loosening and bone tumour resection. With the advent of digital technologies in medical imaging, computer programming in three-dimensional (3D) modelling [1] and computer-assisted tools [2][3][4][5] in precise implant placement, there has been increasing interest in using patientspecific implants for complex orthopaedic reconstruction [6][7][8][9][10][11][12][13][14][15][16].…”

Section: Introductionmentioning

confidence: 99%

Additive manufactured metallic implants for orthopaedic applications

Wong

Scheinemann

2018

Sci. China Mater.

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Metallic implants are commonly used in various orthopaedic surgeries, like fracture fixation, spinal instrumentation, joint replacement and bone tumour surgery. Patients may need to adapt to the fixed dimensions of the standard implants. It may result in suboptimal fit to the host bones and possible adverse clinical results. The standard traditional implants may not address the reconstructive challenges such as severe bone deformity or bone loss after implant loosening and bone tumour resection. With the advent of digital technologies in medical imaging, computer programming in three-dimensional (3D) modelling and computer-assisted tools in precise placement of implants, patient-specific implants (PSI) have gained more attention in complex orthopaedic reconstruction. Additive manufacturing technology, in contrast to the conventional subtractive manufacturing, is a flexible process that can fabricate anatomically conforming implants that match the patients' anatomy and surgical requirements. Complex internal structures with porous scaffold can also be built to enhance osseointegration for better implant longevity. Although basic studies have suggested that additive manufactured (AM) metal structures are good engineered biomaterials for bone replacement, not much peer-reviewed literature is available on the clinical results of the new types of implants. The article gives an overview of the metallic materials commonly used for fabricating orthopaedic implants, describes the metal-based additive manufacturing technology and the processing chain in metallic implants; discusses the features of AM implants; reports the current status in orthopaedic surgical applications and comments on the challenges of AM implants in orthopaedic practice.

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Recent Developments of Biomaterials for Additive Manufacturing of Bone Scaffolds

Zhang

et al. 2020

Adv Healthcare Materials

102

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Recent years have witnessed surging demand for bone repair/regeneration implants due to the increasing number of bone defects caused by trauma, cancer, infection, and arthritis worldwide. In addition to bone autografts and allografts, biomaterial substitutes have been widely used in clinical practice. Personalized implants with precise and personalized control of shape, porosity, composition, surface chemistry, and mechanical properties will greatly facilitate the regeneration of bone tissue and satiate the clinical needs. Additive manufacturing (AM) techniques, also known as 3D printing, are drawing fast growing attention in the fabrication of implants or scaffolding materials due to their capability of manufacturing complex and irregularly shaped scaffolds in repairing bone defects in clinical practice. This review aims to provide a comprehensive overview of recent progress in the development of materials and techniques used in the additive manufacturing of bone scaffolds. In addition, clinical application, pre-clinical trials and future prospects of AM based bone implants are also summarized and discussed.

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One-step reconstruction with a 3D-printed, custom-made prosthesis after total en bloc sacrectomy: a technical note

Cited by 121 publications

References 26 publications

Systematic review of 3D printing in spinal surgery: the current state of play

Systematic review of 3D printing in spinal surgery: the current state of play

Additive manufactured metallic implants for orthopaedic applications

Recent Developments of Biomaterials for Additive Manufacturing of Bone Scaffolds

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