Comparison of 3D printed anatomical model qualities in acetabular fracture representation

Salazar, David; Cramer, Justin A.; Markin, Nicholas W.; Hunt, Nathaniel H.; Linke, Gabe; Siebler, Justin; Zúñiga, Jorge M.

doi:10.21037/atm-21-5069

Cited by 7 publications

(4 citation statements)

References 26 publications

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“…In most complex cases, CT scan images can be elaborated using modern 3D modeling software that allow to create a digital virtual replica of the patient anatomy, splitting the metal implant from the 3D skeletal model of the hip ( Figure 3 ) ( 31 - 33 ).…”

Section: Discussionmentioning

confidence: 99%

Proximal femoral defect classifications in revision total hip arthroplasty from X-rays imaging to advanced 3D imaging: a narrative review

Marongiu,

Leinardi,

Antuofermo

et al. 2024

Ann Joint

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Background and Objective Femoral bone defect in hip arthroplasty revision surgery represents a complex problem, and the treatment is a challenge for orthopedic surgeons called to assess the residual bone stock in an altered anatomy and obtain stability for the new implant. Classification systems available are mostly based on X-rays two-dimensional images and lack of accuracy and reproducibility and comprehensive therapeutic algorithms. However, there is no record of any classification based on computed tomography (CT)-scan images or three-dimensional (3D) modeling modern techniques. We aimed to review the current literature around femoral defect classifications (FDCs) analyzing their different rationale basis, reliability and accuracy, and their benefit in clinical practice. Moreover, we highlighted the role of CT scan-based 3D modeling techniques in the setting of femoral bone defects and revision hip arthroplasty. Methods A narrative review was conducted. The articles were selected from the PubMed and Scopus medical database updated to March 2023. All Level-I to IV studies in the English language were considered for inclusion. The research was performed using relevant search term items: “femoral defects”, “classification”, “radiographic”, “revision hip arthroplasty”, “CT scan” and “3D” and we included only articles that evaluated the accuracy or reliability (or both) of the different femoral bone defects classification system. Key Content and Findings Our search yielded 408 results, of which 17 were deemed highly relevant. We found seven X-ray-based classification systems which have been attempted to quantify the degree of bone loss with low to good reproducibility. The most used classification system for femoral bone defects were the AAOS and Paprosky classification, which also offers a clinical therapeutic algorithm. In 2021, the FDC interestingly showed a new simple classification system with sub-optimal reproducibility and a practical therapeutic algorithm. Despite the numerous classification system of femoral defects, none of them comprehends the use of CT scan and 3D imaging technologies. Conclusions Traditional X-rays-based classification system are still widely used event if their intra-observer and inter-observer reliability is sub-optimal. 3D modeling techniques represent an important diagnostic tool that could improve the understanding of bone defects and residual bone supportive structures, allowing to elaborate new, more precise, classification systems.

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Section: Discussionmentioning

confidence: 99%

Proximal femoral defect classifications in revision total hip arthroplasty from X-rays imaging to advanced 3D imaging: a narrative review

Marongiu,

Leinardi,

Antuofermo

et al. 2024

Ann Joint

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“…29,30 The adoption of 3D-printed models derived from three-dimensional medical image datasets or surface scans is gaining significant momentum in both anatomy teaching. [31][32][33] and pre-operative planning, 34,35 offering an alternative approach for physical visualization.…”

Section: Discussionmentioning

confidence: 99%

Doing more with less: Realistic stereoscopic three‐dimensional anatomical modeling from smartphone photogrammetry

Morichon,

Dannhoff,

Barantin

et al. 2024

Anatomical Sciences Ed

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Traditional teaching methods struggle to convey three‐dimensional concepts effectively. While 3D virtual models and virtual reality platforms offer a promising approach to teaching anatomy, their cost and specialized equipment pose limitations, especially in disadvantaged areas. A simpler alternative is to use virtual 3D models displayed on regular screens, but they lack immersion, realism, and stereoscopic vision. To address these challenges, we developed an affordable method utilizing smartphone‐based 360° photogrammetry, virtual camera recording, and stereoscopic display (anaglyph or side‐by‐side technique). In this study, we assessed the feasibility of this method by subjecting it to various specimen types: osteological, soft organ, neuroanatomical, regional dissection, and a dedicated 3D‐printed testing phantom. The results demonstrate that the 3D models obtained feature a complete mesh with a high level of detail and a realistic texture. Mesh and texture resolutions were estimated to be approximately 1 and 0.2 mm, respectively. Additionally, stereoscopic animations were both feasible and effective in enhancing depth perception. The simplicity and affordability of this method position it as a technique of choice for creating easily photorealistic anatomical models combined with stereoscopic depth visualization.

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“…The construction of 3D models from two-dimensional (2D) images depends on the user's needs, possibilities, the time needed to create the models, and costs. In the process of anatomical models, the cornerstone is the methodology used for their development [39]. Using inexpensive materials and/or low-cost equipment can decrease the quality of the models.…”

Section: Discussionmentioning

confidence: 99%

Different Techniques of Creating Bone Digital 3D Models from Natural Specimens

Edelmers

Kažoka

Boločko

et al. 2022

ASI

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The choice of technique for the creation of a 3D digital human bone model from natural specimens has a critical impact on the final result and usability of the obtained model. The cornerstone factor in 3D modeling is the number of faces of polygon mesh, along with topological accuracy, as well as resolution and level of detail of the texture map. Three different techniques (3D scanning, photogrammetry, and micro-computed tomography) have been used to create a digital 3D model of the human zygomatic bone. As implementation and use of 3D models can be divided into three main categories—visualization, simulation, and physical replication to obtain a functioning model (implant or prothesis)—the obtained models have been evaluated by the density and topological accuracy of the polygonal mesh, as well as by visual appearance by inspecting the obtained texture map. The obtained data indicate that for biomedical applications and computer biomechanical simulation the most appropriate technique of 3D model obtainment is micro-computed tomography, in its turn for visualization and educational purposes, the photogrammetry technique is a more preferable choice.

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Comparison of 3D printed anatomical model qualities in acetabular fracture representation

Cited by 7 publications

References 26 publications

Proximal femoral defect classifications in revision total hip arthroplasty from X-rays imaging to advanced 3D imaging: a narrative review

Proximal femoral defect classifications in revision total hip arthroplasty from X-rays imaging to advanced 3D imaging: a narrative review

Doing more with less: Realistic stereoscopic three‐dimensional anatomical modeling from smartphone photogrammetry

Different Techniques of Creating Bone Digital 3D Models from Natural Specimens

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