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      Varisized 3D‐Printed Lunate for Kienböck's Disease in Different Stages: Preliminary Results

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          There is no author summary for this article yet. Authors can add summaries to their articles on ScienceOpen to make them more accessible to a non-specialist audience.

          Abstract

          Objective

          To evaluate the feasibility of arthroplasty with varisized three‐dimensional(3D) printing lunate prosthesis for the treatment of advanced Kienböck's disease (KD).

          Methods

          From 2016 November to 2018 September, a retrospective study was performed for the patients of KD in our hospital. Five patients (two males, three females) were included in this study. The mean age of the patients at the time of surgery was 51.6 years (range, 37–64 years). Varisized prosthesis identical to the live model in a ratio of 1:0.85, 1:1, and 1:1.1 were fabricated by 3D printing. All patients (one in Lichtman IIIA stage, two in Lichtman IIIB stage, one in Lichtman IIIC stage, and one in Lichtman IV stage) were treated with lunate excision and 3D printing prosthetic arthroplasty. Visual analog scale score (VAS), the active movement of wrist (extension, flexion) and strength were assessed preoperatively and postoperatively. The Mayo Modified Wrist Score (MMWS), Disabilities of the Arm, Shoulder and Hand (DASH) Score, and patient's satisfaction were evaluated during the follow‐up.

          Results

          Prosthesis identical to the live model in a ratio of 1:0.85 or 1:1 were chosen for arthroplasty. The mean operation time (range, 45 to 56 min) was 51.8 ± 4.44 min. Follow‐up time ranged from 11 months to 33 months with the mean value of 19.4 months. The mean extension range of the wrist significantly increased from preoperative 44° ± 9.6° to postoperative 60° ± 3.5° ( P < 0.05). The mean flexion range of the wrist significantly increased from preoperative 40° ± 10.6° to postoperative 51° ± 6.5° ( P < 0.05). The active movement of wrist and strength were improved significantly in all patients. VAS was significantly reduced from 7.3 preoperatively to 0.2 at the follow‐up visit ( P < 0.05). The mean DASH score was 10 (range, 7.2–14.2), and the mean MMWS was 79 (range, 70–90). There were no incision infection. All patients were satisfied with the treatment.

          Conclusions

          For patients suffering advanced Kienböck's disease, lunate excision followed by 3D printing prosthetic arthroplasty can reconstruct the anatomical structure of the carpal tunnel, alleviate pain, and improve wrist movement.

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          Most cited references 27

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          Laser and electron-beam powder-bed additive manufacturing of metallic implants: A review on processes, materials and designs.

          Additive manufacturing (AM), also commonly known as 3D printing, allows the direct fabrication of functional parts with complex shapes from digital models. In this review, the current progress of two AM processes suitable for metallic orthopaedic implant applications, namely selective laser melting (SLM) and electron beam melting (EBM) are presented. Several critical design factors such as the need for data acquisition for patient-specific design, design dependent porosity for osteo-inductive implants, surface topology of the implants and design for reduction of stress-shielding in implants are discussed. Additive manufactured biomaterials such as 316L stainless steel, titanium-6aluminium-4vanadium (Ti6Al4V) and cobalt-chromium (CoCr) are highlighted. Limitations and future potential of such technologies are also explored.
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            • Article: not found

            Reconstruction of the Upper Cervical Spine Using a Personalized 3D-Printed Vertebral Body in an Adolescent With Ewing Sarcoma.

            Case report.
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              • Record: found
              • Abstract: not found
              • Article: not found

              Reconstruction with 3D-printed pelvic endoprostheses after resection of a pelvic tumour

               H. Liang,  T. Ji,  Y. Zhang (2017)
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                Author and article information

                Contributors
                jinwu_wang@163.com , ganyk2004@126.com
                jinwu_wang@163.com
                Journal
                Orthop Surg
                Orthop Surg
                10.1111/(ISSN)1757-7861
                OS
                Orthopaedic Surgery
                John Wiley & Sons Australia, Ltd (Melbourne )
                1757-7853
                1757-7861
                17 May 2020
                June 2020
                : 12
                : 3 ( doiID: 10.1111/os.v12.3 )
                : 792-801
                Affiliations
                [ 1 ] Shanghai Key Laboratory of Orthopaedic Implant, Department of Orthopaedic Surgery Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine Shanghai China
                [ 2 ] College of Medicine Southwest Jiao Tong University Sichuan China
                [ 3 ] Department of Orthopaedic Surgery Yuyao People's Hospital of Zhejiang Province Yuyao China
                [ 4 ] School of Biomedical Engineering Shanghai Jiao Tong University Shanghai China
                Author notes
                [* ] Address for correspondence Jin‐wu Wang, MD, Yaokai Gan, Shanghai Key Laboratory of Orthopaedic Implant, Department of Orthopaedic Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China, 701, No. 3 Building, 639 Zhizaoju Road, Shanghai, China 200011 Phone: +86 13301773680, Fax: +86 21 63139920, Email: jinwu_wang@ 123456163.com ; ganyk2004@ 123456126.com
                [†]

                These authors contributed equally to this work.

                Article
                OS12681
                10.1111/os.12681
                7307251
                32419366
                © 2020 The Authors. Orthopaedic Surgery published by Chinese Orthopaedic Association and John Wiley & Sons Australia, Ltd.

                This is an open access article under the terms of the http://creativecommons.org/licenses/by/4.0/ License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.

                Page count
                Figures: 9, Tables: 2, Pages: 10, Words: 5852
                Product
                Funding
                Funded by: National Key R&D Program of China
                Award ID: 2018YFB1105600
                Award ID: 2018YFC2002303
                Funded by: China Postdoctoral Science Foundation , open-funder-registry 10.13039/501100002858;
                Award ID: 2017ZZ01023
                Funded by: School of Medicine , open-funder-registry 10.13039/100008246;
                Funded by: Shanghai Jiao Tong University , open-funder-registry 10.13039/501100004921;
                Funded by: Shanghai Key Laboratory of Orthopedic Implants
                Categories
                Clinical Article
                Clinical Articles
                Custom metadata
                2.0
                June 2020
                Converter:WILEY_ML3GV2_TO_JATSPMC version:5.8.4 mode:remove_FC converted:22.06.2020

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