IEEE Rev Biomed Eng. 2020;13:233-247. doi: 10.1109/RBME.2019.2928424. Epub 2019 Jul 12.
Malunion of the distal radius is a common complication following a distal radius fracture. The surgical treatment of a symptomatic distal radius malunion is a corrective osteotomy (CO) procedure aimed at the restoration of the anatomical alignment of the distal radius articular surface in the wrist joint. Traditional two-dimensional imaging techniques in the management of malunion have demonstrated to be limited in pre-, intra-, and postoperative imaging and visualization of the bone architecture. Over the past decades, with the advent of three-dimensional (3-D) imaging techniques, innovations have emerged in the field of preoperative planning, navigation, and 3-D printing. The aim of this paper is to review the existing literature and inform clinicians and biomedical engineers approaching the field about advantages, disadvantages, and future perspectives of existing computer-assisted technology for CO. Collected studies agree on showing the efficacy of the computed-tomography-based 3-D virtual planning. Currently, patient-specific 3-D printed guides and implants are the most promising technology to transfer the preoperative plan to the patient. However, further biomechanical studies, larger clinical trials, and a major exposure of clinicians to 3-D planning are needed to augment the feasibility of using these technologies in standard practice.
桡骨远端愈合不良是桡骨远端骨折的常见并发症。有症状的桡骨远端愈合不良的手术治疗是一种矫正性截骨术（CO），旨在恢复腕关节桡骨远端关节面的解剖对线。在愈合不良的管理中，传统的二维成像技术在术前、术中及术后的成像和骨结构可视化方面表现出局限性。过去几十年，随着三维（3-D）成像技术的出现，术前规划、导航和 3-D 打印领域出现了创新。本文的目的是回顾现有文献，并向从事该领域的临床医生和生物医学工程师介绍 CO 现有计算机辅助技术的优缺点和未来展望。收集到的研究一致表明，基于计算机断层扫描的 3-D 虚拟规划具有疗效。目前，患者特异性 3-D 打印导板和植入物是将术前计划转移到患者身上最有前途的技术。然而，需要进一步的生物力学研究、更大的临床试验以及让临床医生更多地接触 3-D 规划，以提高在标准实践中使用这些技术的可行性。
