Rapid prototyped patient specific guiding implants in critical mandibular reconstruction

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• 作者：Patricia Stoor^a ; Anni Suomalainen^b ; Karri Mesimä ; ki^a ; Risto Kontio^a ; ^{risto.kontio@hus.fi}
• 关键词：Mandibular reconstruction ; Rapid prototyped implants ; Microvascular reconstruction
• 刊名：Journal of Cranio-Maxillofacial Surgery
• 出版年：2017
• 出版时间：January 2017
• 年：2017
• 卷：45
• 期：1
• 页码：63-70
• 全文大小：2286 K
• 卷排序：45

文摘

The progress of medical modelling and computer aided design is rapid. Different patients' specific implants (PSI) have become available. We have carried out a prospective follow up study on mandibular reconstruction using a new design of a PSI, with a scaffold part attached to a solid large plate. The total number of patients is 14 including a total of 15 cases. The purpose of the study was to evaluate the results and the use of PSI's combined with microvascular flaps in 12 of 15 cases with benign or malignant tumours demanding continuity resection of the mandible. The scaffold PSI was filled with β-tricalcium phosphate granules and autologous bone with an average follow up of 33 months clinically and of 21 months radiologically. Our designed PSI showed a very good fitting and in nine cases the healing was uneventful. A major complication, however, was the lingual border of the PSI being too high leading to perforation of the mucosa with infection resulting in total or partial removal of the PSI in four cases. The benefits are decreased rate of donor site complications and more accurate and prompt surgical procedure.