The precision and reliability evaluation of 3-dimensional printed damaged bone and prosthesis models by stereo lithography appearance

Abstract

Recently, clinical application of 3D printed model was increasing. However, there was no systemic study for confirming the precision and reliability of 3D printed model. Some senior clinical doctors mistrusted its reliability in clinical application. The purpose of this study was to evaluate the precision and reliability of stereolithography appearance (SLA) 3D printed model.Some related parameters were selected to research the reliability of SLA 3D printed model. The computed tomography (CT) data of bone/prosthesis and model were collected and 3D reconstructed. Some anatomical parameters were measured and statistical analysis was performed; the intraclass correlation coefficient (ICC) was used to was used to evaluate the similarity between the model and real bone/prosthesis. the absolute difference (mm) and relative difference (%) were conducted. For prosthesis model, the 3-dimensional error was measured.There was no significant difference in the anatomical parameters except max height (MH) of long bone. All the ICCs were greater than 0.990. The maximum absolute and relative difference were 0.45 mm and 1.10%; The 3-dimensional error analysis showed that positive/minus distance were 0.273 mm/0.237 mm.The application of SLA 3D printed model in diagnosis and treatment process of complex orthopedic disease was reliable and precise.

Novel exploration of 3D printed personalized total elbow arthroplasty to solve the severe bone defect after internal fixation failure of comminuted distal humerus fracture

“…The stereolithography appearance was proven to be reliable and precise in diagnosing and treating some complex orthopedic diseases. [ 18 ] In this case, the 3D reconstruction from the CT scan data and the 3D printed stereolithography resin humerus model were used to estimate the osteotomy scope. In the personalized prosthesis design procedure, it was crucial to restoring the primary anatomy structure of the affected humerus.…”

Therapeutic strategies for skin regeneration based on biomedical substitutes

“…89 Latest advances in skin 3D scaffolds include the use of novel composite biomaterials such as a gelatine-sulfonated silk composite scaffold, which is used to stimulate neovascularization within the construct, 90 and the applications of innovative technologies in scaffold fabrication such as stereolithographic 3D bioprinting, a layer-by-layer photopolymerization system which provides good material selection, resolution, speed and low surface roughness. 91,92 Another example is the use of mechanical micromilling technology, a precise fabrication of undulated microtopographies of poly(methyl methacrylate) to mimic dermal papillae of skin. 93 These innovative technologies allow to have the possibility to overcome one of the main problems in skin TE which is the deficiency of dermal vascularization, as well as improving the resolution and biomimicry of the scaffolds.…”

Aktueller Stand und neue Entwicklungen des 3D-Drucks in der Unfallchirurgie

“…In zahlreichen experimentellen Untersuchungen konnten hohe Präzision und Reproduzierbarkeit von 3D-gedruckten Objekten nachgewiesen werden. Insgesamt wurde die Verwendung von 3Dgedruckten Modellen für Diagnose und Behandlung bei komplexen orthopädischen Erkrankungen als zuverlässig und präzise beurteilt [38,49,82].…”