桡骨远端骨折智能中药夹板的概念验证研究

      Conceptual Verification of Intelligent Chinese Medicine Splint for Distal Radius Fracture

      • 摘要: 桡骨远端骨折(distal radius fracture,DRF)通常采用静态固定的方法,常导致骨折畸形愈合、压力性损伤等并发症。究其原因,在于固定压力缺乏实时调控、缺少生物力学反馈,从而影响功能恢复。本团队设计了一款智能、自适应的骨科设备。该设备系统基于患者个性化的三维(3D)打印架构,实现轻便、精准的适配,并在关键解剖部位嵌入系列薄膜压力传感器,持续量化生物力学数值。相关数据通过物联网模块上传至云平台,供临床医生实时远程监测。该系统的创新点在于采用区间二型模糊逻辑(IT2-FLC)算法构建闭环反馈控制器,可自动调控伺服驱动带,动态调节压力以适应肢体肿胀变化。初步临床评估显示,治疗组中接受中药智能夹板的患者在解剖复位与功能恢复方面均表现更优,其Cooney评分更高(91.65 vs. 83.15),视觉模拟评分法疼痛评分(visual analogue scale,VAS)更低(1.15 vs. 1.88)。本项概念验证研究为自适应骨科设备提供了新的技术范式,展现出良好的临床转化前景。

         

        Abstract: Distal radius fracture (DRF) usually adopts static fixation method, which often leads to complications such as abnormal fracture healing and pressure injury. The reason lies in the lack of real-time regulation of fixed pressure and biomechanical feedback, which affects the functional recovery. Our team designed an intelligent and adaptive orthopedic equipment. Based on the patient's personalized three-dimensional (3D) printing architecture, the equipment system realizes light and accurate adaptation, and embeds a series of thin film pressure sensors in key anatomical parts to continuously quantify biomechanical values. Relevant data are uploaded to the cloud platform through the Internet of Things module for real-time remote monitoring by clinicians. The innovation of the system is to construct a closed-loop feedback controller by using interval type Ⅱ fuzzy logic (IT2-FLC) algorithm, which can automatically adjust the servo drive belt and dynamically adjust the pressure to adapt to the changes of limb swelling. Preliminary clinical evaluation showed that the patients in the treatment group who received intelligent splint of traditional Chinese medicine performed better in anatomical reduction and functional recovery, with a higher Cooney score (91.65 vs. 83.15) and a lower visual analogue scale pain score (VAS) (1.15 vs. 1.88). This proof-of-concept study provides a new technical paradigm for adaptive orthopedic equipment and shows a good clinical transformation prospect.

         

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