Rothman Institute and Jefferson Medical College, Philadelphia, PA, USA.
Philadelphia College of Osteopathic Medicine, PA, USA.
Hand (N Y). 2020 May;15(3):388-392. doi: 10.1177/1558944718795291. Epub 2018 Aug 27.
The objective of this study was to determine the functionality of 3-dimensional (3D) printed orthoses for upper extremity immobilization compared with conventional immobilization. Twelve healthy volunteers were fitted with a 3D custom printed short arm cast and a short arm fiberglass cast in separate sessions. The Jebsen Hand Function Test (JHFT) was used to test function and dexterity in each cast. All volunteers completed a modified version of the Patient-Rated Wrist Evaluation (PRWE). Skin complications were recorded. There were no significant differences during the JHFT between casts, although one-third of the participants in the 3D cast could perform the tasks in a normal time, which they could not in the fiberglass cast. The average PRWE function score was lower in the 3D cast group than in the fiberglass group (45.5 vs. 80.8). Minor skin irritation was noted in 42% of patients in the fiberglass cast group compared with only 1 patient (8%) in the 3D cast group. One patient in the fiberglass group required a cast change due to inappropriate fit. Both casting techniques demonstrate similar objective function based on the JHFT. Patient satisfaction, comfort, and perceived function are superior in the 3D printed casts.
本研究旨在确定 3 维（3D）打印上肢固定矫形器与传统固定相比的功能。12 名健康志愿者分别在不同的治疗阶段接受了 3D 定制打印的短臂石膏和短臂玻璃纤维石膏的固定。采用杰普森手功能测试（JHFT）测试两种固定方式下的功能和灵巧度。所有志愿者均完成改良版患者手腕评估（PRWE）。记录皮肤并发症。在 JHFT 测试中，两种固定方式之间没有显著差异，尽管有三分之一的 3D 打印石膏固定患者能够在正常时间内完成任务，而在玻璃纤维石膏固定中则无法完成。3D 打印石膏组的平均 PRWE 功能评分低于玻璃纤维组（45.5 分比 80.8 分）。42%的玻璃纤维石膏组患者出现轻微皮肤刺激，而 3D 打印石膏组只有 1 名患者（8%）出现这种情况。玻璃纤维组有 1 名患者因固定不合适需要更换石膏。两种固定技术在 JHFT 中均表现出相似的客观功能。3D 打印石膏在患者满意度、舒适度和感知功能方面更具优势。
