目的：探讨可旋转铰链式膝关节假体的应用。

Objective: To study clinic results of rotation knee system.

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波导同轴旋转铰链是由矩形波导同轴波导构成，是雷达系统中的关键元件。

The waveguide-coaxial rotary joint consists of the rectangular waveguide and the coaxial waveguide, is one of the key components in the radar system.

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目的：分析探讨人工旋转铰链膝关节置换术在复杂膝关节病变中的临床应用效果。

Objective: To analyze and discuss the clinical effect of the application of rotating hinge knee arthroplasty in complex gonarthrosis.

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