Bone fracture monitoring using implanted antennas in the radius, tibia and phalange heterogeneous bone phantoms
Bone fracture monitoring using implanted antennas in the radius, tibia and phalange heterogeneous bone phantoms
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使用桡骨、胫骨和指骨异质骨模型中植入的天线进行骨折监测
DOI：
10.1088/2057-1976/aab974
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发表时间：
2018
影响因子：
1.4
通讯作者：
Symeonidis S
中科院分区：
文献类型：
--
作者：
Symeonidis S
本文提出了一种用于监测严重骨折愈合的创新技术，该技术使用一对射频单极子植入骨折内。据设想，用于稳定和对准骨骼的螺丝和外固定架也将充当单极天线。研究人员在三个新型异质骨模体内测量了所提出的天线配置，这些模体分别代表了桡骨、胫骨和指骨，并将结果与CST微波工作室虚拟家庭中一名26岁女性的体素模型的计算机模拟结果进行了比较。在模拟骨折条件的体模内注入血液模拟液，测量并评估从一个单极到另一个单极(S，21岁)的功率，作为骨折愈合的指标。最后，为了验证体模测量的有效性，我们使用一块小羊股骨进行了体外测量。在所有病例中，通过骨折从一个单极传递到另一个单极的功率随着代表骨折的血量的增加而显著下降。拟议的系统可以为医生提供一种量化监测工具，通过减少创伤后前四周内对骨骼修复至关重要的伤口血肿，来监测骨折的愈合进度。
This paper proposes an innovative technique for monitoring the healing of severe bone fractures using a pair of radio frequency monopoles implanted in the fractured bone. It is envisaged that the screws and external fixation used to stabilise and align the bone will also act as monopole antennas. The proposed antenna configurations were measured inside three novel heterogeneous bone phantoms representing the radius, tibia and phalange bones, and the results were compared to computer simulations with a voxel model of a 26-year-old female from CST Microwave Studio's Virtual Family. The power transmitted from one monopole to the other (S 21) was measured and evaluated as an indicator for fracture healing as blood emulating liquid was injected inside the phantom emulating the conditions of a bone fracture. Finally, for the validation of the phantom measurements, an ex-vivo measurement was conducted using a lamb femur bone. In all cases, the power transmitted from one monopole to the other through the fracture decreased significantly as the volume of the blood representing the fracture increased. The proposed system could provide doctors with a quantitative monitoring tool regarding the healing progress of a fractured bone through the reduction of the wound's hematoma during the first four weeks after the trauma that are critical for bone restoration.
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DOI：
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影响因子：
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