Evaluation of Effective Condyle Positioning Assisted by 3D Surgical Guide in Mandibular Reconstruction Using Osteocutaneous Free Flap

Kim, Seong Ryoung; Jang, Sam; Ahn, Kang-Min; Lee, Jee-Ho

doi:10.3390/ma13102333

Cited by 16 publications

(13 citation statements)

References 31 publications

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“…The research results showed that the digital design plan could be precisely be duplicated into the operation process through the 3D-printed PLA guide plate. The operation time of the mandibular reconstruction was significantly shortened, the intraoperative blood loss was reduced, and postoperative perforation, numbness, pain or looseness of the mandible were not observed, which is similar to the results of relevant studies (24). Ischemic time is considered to be an important factor affecting the survival rate of the fibular grafts, but computer-aided modeling or computeraided machining (CAD/CAM) technology has obvious advantages over traditional surgical methods.…”

Section: Discussionsupporting

confidence: 80%

Clinical application and accuracy analysis of 3D printing guide plate based on polylactic acid in mandible reconstruction with fibula flap

Wu¹,

Hu²,

Li³

et al. 2021

Ann Transl Med

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Background: Due to the special anatomy morphology and physiological function of the mandible, it has always become a challenge to accurately reconstruct the mandibular defect in maxillofacial surgery. Digital three dimensions (3D) printing surgical guide, as the effective method for individual and accurate surgery, is a hotspot of clinical research at present. In this study, 3D printing PLA surgical guide plate was applied to reconstruct the mandibular defect with fibula flap, its clinical effect and accuracy were evaluated, which aimed to improve the accurate reconstruction of mandibular defects.Methods: After sterilization, the dimension deformation of the PLA standard specimen were measured. Eighteen patients diagnose with mandibular tumor were collected as observation objects. Then partial mandible resection and simultaneous mandible reconstruction with fibula graft were implemented according to the computer-aided design plan. The clinical effects of 3D printing PLA guide plates application were evaluated by facial contours, occlusal stability and chewing function. Through registering the postoperative computed images reconstruction with preoperative designed shape, the reconstruction accuracy was evaluated by detecting the maximum difference including the distance between lateral convex point of the condyles, the distance between medial convex point of the condyles and the horizontal contained angle between long axis of the condyles.Results: After high temperature steam sterilization, the curvature of the PLA specimen with 100% filling rate and 4.8 mm thickness were the smallest and their dimension deformation had no statistical significance (P>0.05). The minimally deformed 3D printing PLA guide plate were smoothly placed in the right place during the operation. After surgery, the face was symmetrical, the occlusal relationship was restored well and no deviation of the mandibular movement were found. The spiral computed tomography (SCT) scanning showed that the distance between lateral/medial convex points of the condyle and the horizontal contained angle were 128.34±8.68 mm, 88.69±6.75 mm and 145.87°±12.01°. Compared with preoperative design, the maximum deviation of the actual postoperative registration was 1.67±0.63, and the difference was not statistically significant (P>0.05). Conclusions:The application of 3D printing PLA guide plate in the segmental section and reconstruction of the mandible can effectively simplify the operation, and better reconstruct the continuity of the mandible.The surgical accuracy can fully meet clinical needs with relatively low prices.

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Section: Discussionsupporting

confidence: 80%

Clinical application and accuracy analysis of 3D printing guide plate based on polylactic acid in mandible reconstruction with fibula flap

Wu¹,

Hu²,

Li³

et al. 2021

Ann Transl Med

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“…FDM-based additional manufacturing is widespread in medicine and frequently utilized in the production of models that aid in clinical diagnoses and preoperative planning [ 20 , 21 , 22 , 48 ]. FDM enables the design and production of bone scaffolds and implants, and takes part in drug development research [ 24 , 25 , 26 , 27 , 28 , 49 ].…”

Section: Methods Of 3d Printingmentioning

confidence: 99%

Low-Cost Cranioplasty—A Systematic Review of 3D Printing in Medicine

et al. 2022

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The high cost of biofabricated titanium mesh plates can make them out of reach for hospitals in low-income countries. To increase the availability of cranioplasty, the authors of this work investigated the production of polymer-based endoprostheses. Recently, cheap, popular desktop 3D printers have generated sufficient opportunities to provide patients with on-demand and on-site help. This study also examines the technologies of 3D printing, including SLM, SLS, FFF, DLP, and SLA. The authors focused their interest on the materials in fabrication, which include PLA, ABS, PET-G, PEEK, and PMMA. Three-dimensional printed prostheses are modeled using widely available CAD software with the help of patient-specific DICOM files. Even though the topic is insufficiently researched, it can be perceived as a relatively safe procedure with a minimal complication rate. There have also been some initial studies on the costs and legal regulations. Early case studies provide information on dozens of patients living with self-made prostheses and who are experiencing significant improvements in their quality of life. Budget 3D-printed endoprostheses are reliable and are reported to be significantly cheaper than the popular counterparts manufactured from polypropylene polyester.

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“…Computed tomography images were imported and confirmed on the 3D modeling software platform in the Digital Imaging and Communications in Medicine (DICOM) file format (AVIEW Modeler 1.0; Coreline Soft Incorporation, Seoul, Republic of Korea) (18)(19)(20). The blood volume of the target LA was segmented to create a sculpture and holes were filled to make a 3D model in Standardized Tessellation Language (STL) file format.…”

Section: Three-dimensional Printing and Validation Of The Laa Printin...mentioning

confidence: 99%

Improving Left Atrial Appendage Occlusion Device Size Determination by Three-Dimensional Printing-Based Preprocedural Simulation

Kim

Cho

Kim

et al. 2022

Front. Cardiovasc. Med.

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BackgroundThe two-dimensional (2D)-based left atrial appendage (LAA) occluder (LAAO) size determination by using transesophageal echocardiography (TEE) is limited by the structural complexity and wide anatomical variation of the LAA.ObjectiveThis study aimed to assess the accuracy of the LAAO size determination by implantation simulation by using a three-dimensional (3D)-printed model compared with the conventional method based on TEE.MethodsWe retrospectively reviewed patients with anatomically and physiologically properly implanted the Amplatzer Cardiac Plug and Amulet LAAO devices between January 2014 and December 2018 by using the final size of the implanted devices as a standard for size prediction accuracy. The use of 3D-printed model simulations in device sizing was compared with the conventional TEE-based method.ResultsA total of 28 cases with the percutaneous LAA occlusion were reviewed. There was a minimal difference [−0.11 mm; 95% CI (−0.93, 0.72 mm); P = 0.359] between CT-based reconstructed 3D images and 3D-printed left atrium (LA) models. Device size prediction based on TEE measurements showed poor agreement (32.1%), with a mean difference of 2.3 ± 3.2 mm [95% CI (−4.4, 9.0)]. The LAAO sizing by implantation simulation with 3D-printed models showed excellent correlation with the actually implanted LAAO size (r = 0.927; bias = 0.7 ± 2.5). The agreement between the 3D-printed and the implanted size was 67.9%, with a mean difference of 0.6 mm [95% CI (−1.9, 3.2)].ConclusionThe use of 3D-printed LA models in the LAAO size determination showed improvement in comparison with conventional 2D TEE method.

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Evaluation of Effective Condyle Positioning Assisted by 3D Surgical Guide in Mandibular Reconstruction Using Osteocutaneous Free Flap

Cited by 16 publications

References 31 publications

Clinical application and accuracy analysis of 3D printing guide plate based on polylactic acid in mandible reconstruction with fibula flap

Clinical application and accuracy analysis of 3D printing guide plate based on polylactic acid in mandible reconstruction with fibula flap

Low-Cost Cranioplasty—A Systematic Review of 3D Printing in Medicine

Improving Left Atrial Appendage Occlusion Device Size Determination by Three-Dimensional Printing-Based Preprocedural Simulation

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