Computed tomography based 3D printed patient specific blocks for total knee replacement

Vaishya, Raju; Vijay, Vipul; Vaish, Abhishek; Agarwal, Amit Kumar

doi:10.1016/j.jcot.2018.07.013

Cited by 28 publications

(19 citation statements)

References 26 publications

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“… 4) The use of 3-dimensional printing and virtual preoperative planning may be an immense help, and the use of this technology must be explored in such cases. 10 11) Specific technical considerations must be taken into account while performing THR, viz., (1) the location of the femoral entry point of the reamers, (2) the opening of the blocked medullary canal, (3) restoration of the hip center, (4) correction of limb length discrepancy, (5) fixation of a ununited trochanteric osteotomy, etc. The major problems encountered during THR and their solutions are discussed below.…”

Section: Discussionmentioning

confidence: 99%

Challenges in Total Hip Replacement after McMurray's Osteotomy: A Report of 3 Cases and Review of Literature

2020

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Until approximately 4 decades ago, when the options of arthroplasty and adequate means of fracture fixation were not available, various hip osteotomies were used as salvage operations for the treatment of fractured neck of the femur. Amongst all the osteotomies of the hip, McMurray's osteotomy was one of the most popular procedures. It was first described by Mr. T.P. McMurray of Liverpool, England, in 1936. 1) McMurray's osteotomy is anoblique, medial displacement intertrochanteric osteotomy. It was used widely for the treatment of femoral neck fractures (fresh fractures, delayed union, and nonunion), and degenerative hip arthritis. 2) In the long term, McMurray's osteotomy patients develop limb length discrepancy and secondary osteoarthritis due to the altered biomechanics of the hip and may require total hip replacement (THR). THR after the previous osteotomy is more challenging than that for nonoperated hip joints due to severe distortion of the hip anatomy and soft-tissue contractures. 3) We present our experience of 3 cases of THR after McMurray's osteotomy and discuss the tips and tricks for dealing with surgical difficulties in these cases. METHODS We managed 3 adult males, who underwent THR after McMurray's Osteotomy for fractured neck of the femur (Table 1). All these patients presented with secondary osteoarthritis. These males aged between 59 and 68 years

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Section: Discussionmentioning

confidence: 99%

Challenges in Total Hip Replacement after McMurray's Osteotomy: A Report of 3 Cases and Review of Literature

2020

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“…Each of the shown techniques can be employed for segmental bone defects ( 27 ), production of anatomical models, implants, surgical guides, or other various clinical applications. Even if 3D printing appears to be the “second industrial revolution” especially for orthopedic trauma surgery ( 28 ), the technology is not still utilized at its full potential in the field of orthopedics and traumatology ( 29 , 30 ).…”

Section: Methodsmentioning

confidence: 99%

Integration of Three-dimensional Technologies in Orthopedics: A Tool for Preoperative Planning of Tibial Plateau Fractures

2020

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Background: There is a growing scientific interest in the use of three-dimensional (3D) technologies in orthopedic surgery. Digitalization makes research in orthopedics more accurate and quantitative. Scientific literature describes an overview of current 3D technologies applications in orthopedics, without any emphasis on integrating available technologies as a clinical workflow. Objective: To develop a clinical workflow integrating 3D technologies for patient-specific applications in orthopedics validated in practice by employment of a free 3D software solution with the aim of minimizing the intervention. Method: By exploring the applications of 3D technologies in orthopedic surgery, we have created a clinical workflow integrating 3D technologies for patient-specific applications in orthopedics. It is validated in practice for preoperative planning of a 49-year-old male patient who had a tibial plateau fracture of Schatzker type VI in his right leg. The software solution we have used is Democratiz3D, from Embodi3d platform, which allows patient-specific modeling and surgical planning. Results: By using the proposed methodology we obtained the model of the tibial plateau fracture Schatzker type VI, as a “solid” representation in stl type files, which represents a numerically defined geometry of the bones fragments. It helps surgeons in planning the surgical approach. The time from the beginning to the end of the analysis was 193 min, which is 15% lower than times reported in similar studies. Conclusion: The planning potential of the 3D solution is a valuable instrument for surgeons in exploring the nature of tibial plateau fractures and the formulation of a suitable surgical plan for surface alignment, design and screw fixation guides, strength calculations of bone fragments, and printing surgical objects.

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“…They are 3D structures which provide a template for cell attachment in bone tissue formation. 1 There are various critical parameters to define the performance of scaffolds; these include, pore-volume, pore size, chemical properties and mechanical strength. It is made as per the understanding of bone mechanics, bone structure, and tissue formation for new functional bone tissues.…”

Section: Introductionmentioning

confidence: 99%

3D printing applications in bone tissue engineering

Haleem

Javaid

Khan

et al. 2020

Journal of Clinical Orthopaedics and Trauma

196

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Purpose: 3D printing technology provides an excellent capability to manufacture customised implants for patients. Now, its applications are also successful in bone tissue engineering. This paper tries to provide a review of the applications of 3D printing in bone tissue engineering. Methods: Searching by keywords, from the Scopus database, to identify relevant latest research articles on 3D printing in bone tissue engineering, through "3D printing" "bone tissue engineering". This study makes a bibliometric analysis of the identified research articles and identified major applications and steps. Results: 3D printing technology creates innovative development in bone tissue engineering. It involves the manufacturing of a scaffold with the combination of cells and materials. We identified a total number of 257 research articles through bibliometric analysis by searching through keywords "3D printing" "bone tissue engineering". This paper studies 3D printing technology and its significant contributions, benefits and steps used for bone tissue engineering. Result discusses the essential elements of bone tissue engineering and identifies its five significant advancements when 3D printing is used. Finally, ten useful applications of 3D printing in bone tissue engineering are identified and studied with a brief description. Conclusion:In orthopaedics, bone defects create a high impact on the quality of life of the patient. It leads to a higher demand for bone substitutes for replacement of bone defect. Bone tissue engineering can help to replace a critical defect bone. 3D printing is a useful technology for the fabrication of scaffolds critical in bone tissue engineering. There are different binders which can create bone scaffolds with requisite mechanical strength. These binders are used to create excellent osteoconductive, bioactive scaffolds. Computed tomography (CT) and Magnetic resonance imaging (MRI) help to provide images of specific defects of an individual patient, and these images can further be used for 3D printing the detective object. A bone defect caused by specific disease is sorted out by transplantation in clinical practice. Now a day bone tissue engineering opens a new option for this treatment of bone defects with the manufacturing of porous bone scaffold using 3D printing technology.

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Computed tomography based 3D printed patient specific blocks for total knee replacement

Cited by 28 publications

References 26 publications

Challenges in Total Hip Replacement after McMurray's Osteotomy: A Report of 3 Cases and Review of Literature

Challenges in Total Hip Replacement after McMurray's Osteotomy: A Report of 3 Cases and Review of Literature

Integration of Three-dimensional Technologies in Orthopedics: A Tool for Preoperative Planning of Tibial Plateau Fractures

3D printing applications in bone tissue engineering

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