The use of rapid prototyping to assist medical applications

Gibson, Ian; Cheung, LK; Chow, S. P.; Cheung, W.L.; Beh, SL; Savalani, M. M.; Lee, S.H.

doi:10.1108/13552540610637273

Cited by 194 publications

(112 citation statements)

References 5 publications

Supporting

Mentioning

105

Contrasting

Unclassified

Order By: Relevance

“…It can then generate the complex free-form structure such as scaffold lattice in a metal monoblock that would be impossible using conventional subtractive manufacturing techniques by computer numerical control machines. The ALM technique has been successfully used in the craniofacial reconstruction, dental applications and customized hip implants, [22][23][24][25] but is not reported in orthopedic bone tumor surgery. The early results of using 3D printed titanium trabecular lattice structure to fill up and reconstruct extensive acetabular bone defect were promising in the revision hip arthroplasty.…”

Section: Discussionmentioning

confidence: 99%

One-step reconstruction with a 3D-printed, biomechanically evaluated custom implant after complex pelvic tumor resection

Kumta

et al. 2015

Computer Aided Surgery

205

146

View full text Add to dashboard Cite

Resection of a pelvic tumor is challenging because of its complex three-dimensional (3D) anatomy and deep-seated location with nearby vital structures. The resection is technically demanding if a custom implant is used for reconstruction of the bone defect as the surgeon needs to ensure the resection margin is sufficiently wide and the orientation of intended resection planes must match that of the custom implant. We describe a novel workflow of performing a partial acetabular resection in a patient with pelvic chondrosarcoma and reconstruction with a custom pelvic implant in a one-step operation. A multi-planar bone resection was virtually planned. A computer-aided design implant that both matched the bone defect and biomechanically evaluated was prefabricated with 3D printing technology. The 3D-printed patient-specific instruments (PSIs) were used to reproduce the same planned resection. The histology of the tumor specimen showed a clear resection margin. The errors of the achieved resection and implant position were deviating (1-4 mm) from the planned. The patient could walk unaided with a good hip function. No tumor recurrence and implant loosening were noted at 11 months after surgery. The use of this novel CTbased method for surgical planning, the engineering software for implant design and validation, together with 3D printing technology for implant and PSI fabrication makes it possible to generate a personalized, biomechanically evaluated implant for accurate reconstruction after a pelvic tumor resection in a one-step operation. Further study in a larger population is needed to assess the clinical efficacy of the workflow in complex bone tumor surgery. ARTICLE HISTORY

show abstract

Section: Discussionmentioning

confidence: 99%

One-step reconstruction with a 3D-printed, biomechanically evaluated custom implant after complex pelvic tumor resection

Kumta

et al. 2015

Computer Aided Surgery

205

146

View full text Add to dashboard Cite

show abstract

“…The proportion of papers presented on medical modelling fell in comparison to those focussed on direct implant production or XCT inspection and metrology, but a large number of studies furthered research during this time, a selection of which can be seen in references [1,[37][38][39][40][41][42][43][44]. This period showed a prevalence of the use of XCT in the design of various implants, summarised in a paper that detailed recent advances in production of tissue-engineering scaffolds [45].…”

Section: History 2005-2010mentioning

confidence: 99%

“…In this study, Hollister converted XCT data to CAD data in order to design the bounds of a scaffold structure, contrasting various AM techniques for part production. Other similar studies discussing a variety of methods of additive scaffold production from XCT data can be found elsewhere [44,[46][47][48][49]. In the papers by Mazzoli et al [48] and Dinda et al [49], the authors elaborate on AM production methods through microstructural and mechanical characterisation of manufactured scaffolds built from polyamide containing Al particles and Ti6Al4V respectively.…”

Section: History 2005-2010mentioning

confidence: 99%

X-ray computed tomography and additive manufacturing in medicine: a review

Thompson

McNally

Maskery

et al. 2017

Int. J. Metrol. Qual. Eng.

View full text Add to dashboard Cite

Abstract. The use of X-ray computed tomography (XCT) with additive manufacture (AM) within a medical context is examined in this review. The seven AM process families and various XCT scanning techniques are explained in brief, and the use of these technologies together is detailed over time. The transition of these technologies from a simple method of medical modelling to a robust method of customised implant manufacture is described, and the state-of-the-art for XCT and AM is examined in detail. XCT and AM are identified as having the potential to improve gold standards in both modelling and implant production, and in the conclusions of this review, primary barriers to the increased adoption of AM and XCT technologies are identified in reference to the main applications of XCT and AM technologies. The primary prohibitive factors generally relate to the cost of production across all of the examined applications, as well as the need for further clinical trials in surgical guidance and applications involving implantation.

show abstract

“…FDM machines have a wide range of materials choice. The beauty of 3D printing technology is that each and every model made of 3D printer can be customized [2]. This is benefiting most of the medical industry.…”

Section: Introductionmentioning

confidence: 99%

Fabrication of Patient Specific Genioplasty Surgical Template Using Investment Casting

Malyala¹,

Y²,

Kumar³

et al. 2017

Biol Med

View full text Add to dashboard Cite

Additive Manufacturing (AM) is one of the best techniques to fabricate customized medical models. This technique best suited for the medical industry. The surgical template design and dimensions vary from patient to patient, depending on the anatomy of the patient. AM provides flexibility to design a patient specific surgical template using the patient CT scan data. Medical processing software converts DICOM to 3D CAD data. This 3D CAD data is used to design the patient specific surgical template. This surgical template data is then converted into an STL file format to fabricate medical models using AM machines. The initial surgical template is fabricated using FDM machines, which are easily available and this template is used for pre surgical planning. After satisfactory results are obtained in the pre surgical planning, the same STL file is fabricated using a castable resin. The castable resin model is used for preparation of the mould for casting process. This mould is then used to produce the final surgical template with medical grade SS316. The cost of the final metal surgical template is reduced by 30 percent compared to production of same model fabricated using metal AM system. The major advantage of this process is that we obtain a patient specific template in traditional approved way, but at reduced cost.

show abstract

The use of rapid prototyping to assist medical applications

Cited by 194 publications

References 5 publications

One-step reconstruction with a 3D-printed, biomechanically evaluated custom implant after complex pelvic tumor resection

One-step reconstruction with a 3D-printed, biomechanically evaluated custom implant after complex pelvic tumor resection

X-ray computed tomography and additive manufacturing in medicine: a review

Fabrication of Patient Specific Genioplasty Surgical Template Using Investment Casting

Contact Info

Product

Resources

About