The stiffness matrix of semi-rigid steel frames and the fixed end moment are deduced, based on the connection element method incorporating the effects of joint flexibility.
采用连接单元法,考虑连接柔性的影响,推导出半刚性框架梁柱的刚度矩阵及半刚性梁的固端弯矩。
Methods 20 cases of ankle joint fracture with inferior tibiofibular joint split were fixed with sponge bone compression screws to restore the malleolar cave structure.
方法对20例踝关节骨折伴下胫腓韧带分离患者按Bonnin分度法,Ⅱ度12例,Ⅲ度8例采用加压松质骨螺钉内固定术,使踝穴结构恢复正常。
Methods Open reduction and internal fixation of the medial, lateral and the posterior malleolar fracture were used. The separation of the tibiofibular joint was fixed with a long screw or a bolt to keep the stability of the ankle mortise.
方法手术复位,内固定外踝、内踝或后踝骨折,有胫腓关节分离者用长螺钉或骨栓固定,以维持踝穴的稳定。
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