Salabi Vincent, Rigoulot Guillaume, Sautet Alain, Cambon-Binder Adeline
1 Orthopaedic and Traumatology Department, Saint-Antoine Hospital, Paris, France.
2 Orthopaedic Department, Henri Mondor Hospital, Créteil, France.
J Hand Surg Eur Vol. 2019 Sep;44(7):692-696. doi: 10.1177/1753193419851525. Epub 2019 Jun 2.
Undisplaced scaphoid waist fractures can be managed by percutaneous fixation. The purpose of this study is to compare percutaneous fixation using a three-dimensional (3-D)-printed guide with the conventional method in a cadaveric study. Twelve wrists were divided into two groups: standard fluroscopic technique group, and a patient-specific 3-D-printed guide group. In the patient-specific group, using high resolution CT scans, we manufactured a mould-guide including a wire guide sleeve aligned with the planned ideal path, and 3-D printed it. On postoperative CT scans we measured the angular deviation of the screw axis from the ideal axis, and compared the two groups. The angular deviation was significantly lower in the patient-specific guide group. We concluded that a 3-D-printed guide for scaphoid percutaneous fixation allows a more accurate placement of the screw than a fluoroscopy guide in our cadaveric model.
无移位的舟状骨腰部骨折可采用经皮固定治疗。本研究的目的是在尸体研究中比较使用三维（3-D）打印导板的经皮固定与传统方法。将12个腕关节分为两组：标准透视技术组和患者特异性3-D打印导板组。在患者特异性组中，我们使用高分辨率CT扫描制作了一个模具导板，其中包括一个与计划的理想路径对齐的导丝套管，并对其进行了3-D打印。在术后CT扫描中，我们测量了螺钉轴线与理想轴线的角度偏差，并比较了两组。患者特异性导板组的角度偏差明显更低。我们得出结论，在我们的尸体模型中，用于舟状骨经皮固定的3-D打印导板比透视导板能更准确地放置螺钉。
