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首页> 外文期刊>Orthopaedic Journal of Sports Medicine >PREOPERATIVE 3D MODELING AND PRINTING FOR GUIDING PERIACETABULAR OSTEOTOMY
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PREOPERATIVE 3D MODELING AND PRINTING FOR GUIDING PERIACETABULAR OSTEOTOMY

机译：术前3D建模和印刷引导围绕截骨术

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Background: Achieving adequate acetabular correction in multiple planes is essential to the success of Periacetabular Osteotomy (PAO). Three-dimensional (3D) modeling and printing has the potential to improve preoperative planning by accurately guiding intraoperative correction. Hypothesis/Purpose: We, therefore, asked the following questions: 1) For a patient undergoing a PAO, does 3D-modeling with intraoperative 3D-printed models create a reproducible surgical plan to obtain predetermined parameters of correction including lateral center-edge angle (LCEA), anterior center-edge angle (ACEA), Tonnis angle, and femoral head extrusion index (FHEI), 2) Can 3D computer modeling accurately predict when a normalized FHEI can be achieved without the need for a concomitant femoral sided osteotomy? Methods: A retrospective review was conducted on forty-two (42) consecutive patients that underwent a PAO. 3D-modeling software was utilized to simulate a PAO in order to achieve normal LCEA, ACEA, Tonnis angle, and FHEI. If adequate FHEI was not achieved, a femoral osteotomy was simulated. 3D-models were printed as intraoperative guides. Preoperative, simulated, and postoperative ACEA, LCEA, Tonnis angle, and FHEI were measured and compared statistically. Results: 40 patients had a traditional PAO, and 2 had an anteverting-PAO. The simulated LCEA, ACEA, Tonnis angle, and FHEI were within a median difference of 3o, 1o, 1°, and 0% of postoperative values, respectively and showed no statistical difference. Of those that had a traditional PAO, all thirty-four (34) patients were correctly predicted to need a traditional acetabular sided correction alone and the other six (6) were correctly predicted to need a concomitant femoral osteotomy for a correct prediction in 100% of patients. Conclusion: This study demonstrated that in PAO, 3D-modeling and printing allow the surgeon to accurately create a reproducible surgical plan to obtain predetermined postoperative hip coverage parameters. This new technology has the potential to improve preoperative/intra-operative decision making for hip dysplasia and other complex disorders of the hip.
机译：背景：在多个平面下实现足够的髋臼矫正对于终止术骨质术（PAO）的成功至关重要。三维（3D）建模和印刷具有通过准确指导术中校正来改善术前规划的潜力。假设/目的：我们如下问题所示：1）对于经过一个患者的患者，与术中3D印刷模型的3D建模创造了一种可重复的外科手术计划，以获得包括横向中心边角的预定参数，包括横向中心边缘角度（ LCEA），前中心边角（ACEA），吨位角和股骨头挤出指数（FHEI），2）可以3D计算机建模准确预测，何时可以实现正常化的FHEI，而无需伴随股骨侧面骨质术？方法：回顾性审查是在涉及PAO的四十二（42）名（42）名（42）名中进行的。使用3D建模软件来模拟PAO，以实现正常的LCEA，ACEA，TONNI角度和FHEI。如果未实现足够的FHEI，则模拟了股骨骨质切断。 3D模型被印在术中指南。测定术前，模拟和术后ACEA，LCEA，TONNI角度和FHEI，并进行统计比较。结果：40名患者有一个传统的PAO，2个患者有一个防杠。模拟的LCEA，ACEA，吨位角和FHEI分别在3o，1o，1°和0％的术后值的中值差异，并且显示出没有统计差异。在那些具有传统PAO的人中，所有三十四（34）名（34）名患者被正确预测，单独需要传统的髋臼面向校正，另外六（6）次正确预测需要伴随股骨骨质图，以便在100％的正确预测中进行正确的预测患者。结论：本研究表明，在PAO，3D建模和印刷允许外科医生准确地创建可重复的外科手术计划以获得预定的术后髋关节覆盖参数。这项新技术有可能改善术前/术语术前的髋关节发育性和髋关节疾病的其他复杂障碍。

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