Department of Gastrointestinal Surgery, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China.
Department of Radiology, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China.
Colorectal Dis. 2018 Jan;20(1):O26-O29. doi: 10.1111/codi.13958.
The aim was to test the feasibility of a novel three-dimensional (3D) printed guiding device for electrode implantation of sacral neuromodulation (SNM).
A 3D printed guiding device for electrode implantation was customized to patients' anatomy of the sacral region. Liquid photopolymer was selected as the printing material. The details of the device designation and prototype building are described. The guiding device was used in two patients who underwent SNM for intractable constipation. Details of the procedure and the outcomes are given.
With the help of the device, the test needle for stimulation was placed in the target sacral foramen successfully at the first attempt of puncture in both patients. The time to implant a tined SNM electrode was less than 20 min and no complications were observed. At the end of the screening phase, symptoms of constipation were relieved by more than 50% in both patients and permanent stimulation was established.
The customized 3D printed guiding device for implantation of SNM is a promising instrument that facilitates a precise and quick implantation of the electrode into the target sacral foramen.
旨在测试一种新型三维（3D）打印引导装置在骶神经调节（SNM）电极植入中的可行性。
为骶骨区域的患者解剖结构定制了 3D 打印引导装置。选用液态光聚合物作为打印材料。描述了设备设计和原型构建的详细信息。该引导装置用于 2 例因难治性便秘而接受 SNM 的患者。给出了手术过程和结果的详细信息。
在该装置的帮助下，2 例患者的穿刺首次尝试均成功地将刺激测试针放置在目标骶骨孔中。植入带刺的 SNM 电极的时间不到 20 分钟，且未观察到任何并发症。在筛选阶段结束时，2 例患者的便秘症状均缓解超过 50%，并建立了永久性刺激。
定制的 3D 打印 SNM 植入引导装置是一种有前途的工具，可实现电极精确、快速地植入目标骶骨孔。
