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Intramedullary Rod for Assisting Total Knee Joint Replacing Operation and Method for Controle Operation Using the Rod
Intramedullary Rod for Assisting Total Knee Joint Replacing Operation and Method for Controle Operation Using the Rod
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机译:辅助全膝关节置换术的髓内棒及使用该棒的控制术方法
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摘要
Disclosed is an intra-medullary rod, including: a cylindrical body made of an X-ray transmitting material; a plurality of wires, which are made of a material that does not transmit X-ray and are deposited at regular intervals along a surface of the cylindrical body in the circumferential direction, being extended in an axial direction in a spiral shape, wherein each of the wires is made in a way that a starting end and a terminating end of the cylindrical body are connected by the shortest distance along the outer surface thereof. In a fluoroscopic image of the cylindrical body, a distance from a reference position to an intersection location of a pair of the wires corresponds to an amount of rotational angle of the intra-medullary rod. By digitizing the intersection location, the rotational angle of the intra-medullary rod is measured.
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